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iGCSE Sequences Past Paper Questions: All You Need to Know

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5 сен 2024

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Комментарии : 310

@GingerMathematician Год назад

If you would like to go through other iGCSE Maths topics in depth, check out the All of iGCSE Playlist here : ru-vid.com/group/PLYNwTLhq9xZbbYnEipbmqFWb4b-NpOkpd Check out my iGCSE Maths Paper 2 Exam Workshop, where I go through the five most crucial topics you need to know in a revision day style format: www.udemy.com/course/igcse-0580-maths-paper-2-exam-workshop/?referralCode=14EF4EDB1E2914A6B29F

@Academicallystressedout Год назад

Me : having difficulties with a topic *searches Ginger mathematician + that topic * *watches video * Attempt past question and I don’t fail a single one ! A true blessing you areeee

@GingerMathematician Год назад

Most iGCSE topics should now be covered 🙂 👍

@Academicallystressedout Год назад

@@GingerMathematician yes I am at least 98% ready

@noahshighlightreel 3 месяца назад

Me right now!!!

@johnathanwalker75 Год назад

I've never seen Maths explain better in this life before. This is fantastic, you explain so detail, soft, and calm that I am starting to love Arithmetic, Geometric and so on sequence/series. Thank you massively helping everyone watching your video!!

@GingerMathematician Год назад

No problem Johnathan, glad you like my style 😊 And thank you for your question via e-mail 👍

@offlicense6097 Год назад

Literally

@eshhhaal 4 месяца назад

Watching 2 hours before my maths paper 2. You're a lifesaver and any grade I end up with will 100% be owed to you

@GingerMathematician 4 месяца назад

I believe in you! Go out there and show them what you know

@luluslaptop Год назад

you make me so happy. your way of explaining makes it all easy for me to understand, as I was struggling alot with this topic and had no idea how i'd ever be able to learn all about it. thank you so much for providing us with such easy yet defined explanations, you have no idea how much this helps. ♥

@GingerMathematician Год назад

Try and keep it easy and to the point Lulus 🙂👍

@tigered Год назад

Watching this on the morning of my paper 2 IGCSE exam (it's in 2 hours) Words can't express how much I needed this. Thank you so much

@GingerMathematician Год назад

Best of luck Tiger 😊👍

@tigered Год назад

@@GingerMathematician Thanks! I just finished it and there was a big sequence question on the paper. This saved my life-

@PoomiestPoom Год назад

@@tigered How'd you solve it? I ran into a lot of difficulties with it and I wasn't quite sure.

@tigered Год назад

@@PoomiestPoom It's actually more of a re-arranging than a square sequence question. I struggled for a whole 25 minutes on that single question but the key is to list simultaneous equations (I think, I'm not sure...)

@bonsaidaddy9970 11 месяцев назад

@@tigered did u get it right? my maths paper 4 is in a couple hours as well!

@asareprince3174 Год назад

We love and want much more of these videos.

@GingerMathematician Год назад

Videos will keep on coming Asare 🙂👍

@hussamali9302 2 года назад

I got my exam on the 6th of may and if you haven't uploaded this video i wouldn't been able to solve sequences thank you very much

@GingerMathematician 2 года назад

Glad I could help Hussam 🙂!

@claramaia1657 Год назад

I literally love your videos so much! I understand the topic so much better all thanks to this video. Could you please make a video like this on indices

@GingerMathematician Год назад

Indices right here Clara 😊: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-E9xEeT0_zqk.html

@meowochidream 6 месяцев назад

This topic has always made me lose marks but this guy has helped me so much 🥰. I recommend my friends watching your videos, you're truly the best teacher I've seen so far. Keep going sir

@GingerMathematician 5 месяцев назад

Will do 🙂👍

@niveeidhapalani7249 4 месяца назад

i’ve got my math paper 2 igcse tmrw! manifesting an A* for it! although i’m quite certain i will ace the paper!!!!

@GingerMathematician 4 месяца назад

Your hard work will pay off. Best of luck on your exams!

@madlad25 2 года назад

thats so much for releasing these vids i have the the exam in like uhhh 4 days and im stressing myself out too much. i might actually pass because of you :)

@Kanishksz 2 года назад

You are doing it at the same time as me 👊

@GingerMathematician 2 года назад

Glad I could be of help Malik, go and smash those exams 💪

@madlad25 2 года назад

@@GingerMathematician thanks I really appreciate it I will shock the world this Friday

@madlad25 2 года назад

@@Kanishksz yea where are you giving the paper. I'm giving it in England rn

@Kanishksz 2 года назад

@@madlad25 India 👍 he has got a worldwide audience, I just came back from England couple of months back

@hudashaikh1071 7 месяцев назад

This is the first time i understood sequences. Thank you so much, I love your videos . I have my maths paper 22 tomorrow , and I can't tell how helpful this is

@GingerMathematician 6 месяцев назад

Did it go well?

@hudashaikh1071 6 месяцев назад

@@GingerMathematician yess it did, first time i got all the sequence questions right. All thanks to you

@Maverickmav777 2 года назад

Today is my exam and you have saved my life 😉

@GingerMathematician 2 года назад

Glad to have helped Nurdin 🙂

@Maverickmav777 2 года назад

@@GingerMathematician can you recommend some videos for paper 4 on Monday

@no-name5862 Год назад

me：everyone stuying at the the last moment when the exam is tomorrow or today！😂

@MinikSchauf 8 месяцев назад

Man, a week of class on this doesnt make sense, but then 22 minutes does, thanks

@GingerMathematician 8 месяцев назад

I try to be efficient 🙂👍

@sabaabdelfattah Год назад

Thank you dude, mocks are soon and I'm stressing out abt old topics since I can't remeber anything 👍

@GingerMathematician Год назад

Just go through my All of iGCSE Maths Playlist carefully 🙂 👍

@truth9905 4 месяца назад

Thank you!! I didn't understand anything when my teacher explained it. But I answered almost all questions perfectly after you explained it. :)

@GingerMathematician 3 месяца назад

Nice!!

@abdelrahmanmohamad9190 5 месяцев назад

Amaaaaaazing video I have an exam tmrw I used to suck at this chapter now hopefully I can ace it

@GingerMathematician 5 месяцев назад

Best of luck let me know how it goes 🙂

@abdelrahmanmohamad9190 5 месяцев назад

@GingerMathematician it was actually pretty easy.I used to struggle in the nth term now I don't. thank u so much also I subbed cuz u 100% deserve it

@AvisAnimations 2 месяца назад

I don't know if you watch jujutsu kaisen, but you're literally the maharoga to my megumi, oh my god. i have mocks in 2 weeks and i've never felt so prepared after watching your videos and following along man. You're the best!

@GingerMathematician 2 месяца назад

Lol do my best :-)

@githmihiransha5003 Год назад

you are a life saver may god always be with you!

@GingerMathematician Год назад

Thanks Githmi 😊 Very kind

@JohnDoe-ju9pj Год назад

Thanks so much I was looking all around RU-vid for a good explanation and found your channel,very helpful👌

@GingerMathematician Год назад

Thank you Mr. Doe 🙂 glad to have helped!

@Academicallystressedout 9 месяцев назад

Hello, I used your videos this year to read for my math Igcse and I got an A* . Thank you so much I am currently in my first year university studying medicine ! Just remembered you and wanted to tell you how much you have really helped me .

@GingerMathematician 9 месяцев назад

I'm so glad to hear that my videos helped you achieve such great results! Congratulations on your A* and good luck with your studies in medicine!

@hafsaahmed6691 4 месяца назад

Q20) Find the nth term of the sequence -1, 0, 7, 26, 63, ... How to solve this part? This question is from 0580/Feb/March 2023 paper 22

@GingerMathematician 4 месяца назад

HINT: It's a cubic sequence...

@stale_cereal78 4 месяца назад

@@GingerMathematiciandoesn’t make sense though? Once you compare the sequence to the cube numbers, subtracting one from another gives different values: -2, -8, -20, -38, -62. So what’s next?

@ChandramalaAthiappan 4 месяца назад

thank you so much for teaching sequence of IG papers

@GingerMathematician 4 месяца назад

No problem 👍

@titaniadania9440 7 месяцев назад

youre an actual hero please never stop

@GingerMathematician 7 месяцев назад

Do my best 🙂

@machinahonda9835 2 года назад

Thanks for the great video! I tried looking for your PPT file for this Sequence questions. Would you be so kind to share the file as you usually do for the other types of questions? Thanks again, it's been a great help to me!

@GingerMathematician 2 года назад

Thanks for your support 😊 Now added to the description! 👍

@methukasansana4488 4 месяца назад

Thank you very much, This video was very helpful.

@GingerMathematician 4 месяца назад

Thank you so much for taking the time to comment! I genuinely appreciate your feedback and support. If you have any ideas for future videos that you'd like to see, please don't hesitate to send them my way at gingermathematician@gmail.com

@Moonlight20513 7 месяцев назад

This was amazing tbh I like your way of explanation can you plz make a video about Rational and Irrational O level

@GingerMathematician 7 месяцев назад

Rational and Irrational Numbers? 🙂

@Moonlight20513 7 месяцев назад

Yes

@Moonlight20513 7 месяцев назад

Sets too plzzz ❤

@CAgamer Год назад

Hey! Thanks for the video. But I noticed you haven’t covered this type of sequence right: 3,5,9,17,33 As it doesn’t have either a 1st, 2nd or 3rd difference. But I’m not sure how to solve it Thanks

@didyouforgetalready Год назад

hii there, I'm not sure if its called geometric progression or not but this is how you do it: so I assumed you found the difference right? 3 - 5 - 9 - 17 - 33 { sequence } 2 - 4 - 8 - 16 { second difference } 2 4 8 { third diff} if you notice, you can see the SECOND difference are *square numbers* ( square numbers are just 2^1, 2^2, 2^3 and so on ) so then your 'n' will be the placed as the power of the base number 2 = 2^n after this you can subtract the difference between the sequence and square number and BEHOLDDD you find a difference of 1! soooo your sequence will be 2^n + 1 I hope this helps!!

@GingerMathematician Год назад

Thank you Mainam 😊😊

@didyouforgetalready Год назад

@@GingerMathematician no worries :D

@Academicallystressedout Год назад

@@didyouforgetalready very helpful thank uuu

@yaraabusafieh5391 Год назад

I’ve never felt so confident with nth term, thank you 🥲

@GingerMathematician Год назад

No problem Yara 🙂 👍

@rr20986 2 года назад

Thank you so much for this video!! Literally saved my grades. Best channel !!

@GingerMathematician 2 года назад

Let me know how the Paper 4 goes Rex 😉

@rr20986 2 года назад

@@GingerMathematician It went well ! Expect for one question. Rest hopefully is correct

@joannachristene1667 Год назад

thank you so much. you have no idea how much i needed this.

@GingerMathematician Год назад

Glad I could help Joanna! If you'd like further help on any iGCSE Maths topic, do use the playlist here :-) : ru-vid.com/group/PLYNwTLhq9xZbbYnEipbmqFWb4b-NpOkpd

@zahedamulla8949 Год назад

god bless u , my paper two is in 8hrs and i didnt know sequences until rn AHAH ty!

@GingerMathematician Год назад

No problem Zaheda 😊

@innocentkuchocha9609 Год назад

thank you so much you have helped me understand really hard topics

@GingerMathematician Год назад

Happy to help :-)

@TeacherAlvinChan 2 года назад

Great technique in solving quadratic and cubic sequence. Will apply in my classes 😉

@GingerMathematician 2 года назад

Thanks Alvin 🙂 Do my best to keep it simple 👍

@user-pt2zn5zk5s 4 месяца назад

i saw a question saying: 1, -2, -3, 4, -5 and it was to find the equation to find nth term, how would we got about approaching this.

@GingerMathematician 4 месяца назад

Where did you see the question :-)

@user-zu8zb3yj8s 10 месяцев назад

i love ur video and i clearly undertand ur video how u explain well . thank u so much for helping me and keep it up

@GingerMathematician 10 месяцев назад

Will do 🙂

@greyday1117 10 месяцев назад

you are a literal life savor

@GingerMathematician 10 месяцев назад

Thank you 😊👍

@salmasosa479 Год назад

Thank you so much!! I was struggling with sequences

@GingerMathematician Год назад

No problem Salma 🙂 👍

@Vortex1234 3 месяца назад

Could you help me with this question: Find the next three terms in this sequence, 0.5, 2, 3, 5, 6.5,

@GingerMathematician 3 месяца назад

Look at how the difference changes :-)

@KING-uh5ry 2 месяца назад

Sir at 13:48 , for the b part, you said we have to see whether n is an whole number, so if we get n as 0, will it still be no or yes? Please answer fast, I have my test in 4 hours

@BlackStinga69 Месяц назад

how did your test go

@Ahmadalshurafa3 7 месяцев назад

So if it’s quadratic, I always divide by 2 if it’s cubic I always divide by 6 right?

@GingerMathematician 7 месяцев назад

Exactly 🙂👍

@Kanishksz 2 года назад

Nice! I have my igcse in this may series so like a week or so to go. I've just been binge watching your videos and doing past papers, do you recommend doing anything else to enhance the revision or is this okay? Thank btw. :)

@GingerMathematician 2 года назад

Hi Kanishk, essentially you are doing all the right things! Do ask for a teacher to explain the topic if you find the videos and past papers aren't enough... 👍

@Kanishksz 2 года назад

@@GingerMathematician just a quick question, are matrix going to be in the syllabus this time around?

@GingerMathematician 2 года назад

Matrices were taken out of the syllabus 👍

@ChandKhan-zu6uf 2 года назад

Hello, I've just had my paper 2 maths and there was a 5 mark question on sequences that I had no idea about. It was something about having an^2 + bn- 7 and we were given with the first and second term and had to workout what a and b was. Could you pls go through that, it'd be a massive help for the next paper.

@GingerMathematician 2 года назад

Won't be able to do a video on that before Monday Chand but: For the 1st term, set n = 1 that gives a + b - 7 = 1st term For the 2nd term, set n = 2 gives 4a + 2b - 7 = 2nd term Then solve as a simultaneous equation 👍

@ChandKhan-zu6uf 2 года назад

@@GingerMathematician oh okayy thankyou!! I didn't think of that in the paper!! 😔

@user-ii7sz1tq5r 2 года назад

@@ChandKhan-zu6uf same it was hard

@Hahahasuiiiii 2 года назад

@@GingerMathematician if the working is a bit messy but still legible i wont lose marks right? I had to do it on the additional page due to cutting my previous answers

@aishaliaquat3399 2 года назад

Actually it was a repeative question like I have seen it in before in past papers . We could solve it by using simultaneous equation too.

@96holaaaa 2 года назад

please do a tutorial video on TRANSFORMATIONs

@GingerMathematician 2 года назад

On my list with Stats to add to the All of iGCSE playlist 👍

@trishla Год назад

igcse math paper 22 in four hours, thank you for everything 🫶

@GingerMathematician Год назад

No problem Trish 👍

@vanshbhansali2598 Год назад

I just encountered sequence question where this method was not working the end sequence was n^2+5n

@GingerMathematician Год назад

It works in a similar way, the sequence you are left with is the linear sequence 5n :-)

@alvirachandiwala9732 2 года назад

Amazing I used to find this topic so difficult I have my exam tmrw it made it so much easier thank you soooooo much 😊

@GingerMathematician 2 года назад

Best of luck for tomorrow Alvira - is this your last mock? 👍

@alvirachandiwala9732 2 года назад

@@GingerMathematician no I have my unit test I have mocks in December

@alvirachandiwala9732 2 года назад

And I have kept a schedule to watch ur circle theorems video and vacation and proportion also

@GingerMathematician 2 года назад

Ah ok 😉

@alvirachandiwala9732 2 года назад

He can u pls do vid on simultaneous equations and if I score good it's totally gonna be ur initiative

@editsofstuffilike._9406 2 года назад

God bless you 🙏

@GingerMathematician 2 года назад

Do my best 😉

@alexdrawzz Год назад

Yo teacher in the sequence 4,7,12,19, 28 can the formula be 1(n)^2+0(n)+3 I used the quadratic formula way can it be correct I used both formula and they both seem well

@GingerMathematician Год назад

You can just use ax^2 + bx + c and that will work, it will take a little longer 🙂👍

@hoorainshujaat984 Месяц назад

Can i use the Casio fx-991ARX calculator for igcse

@GingerMathematician Месяц назад

Yes you can

@haka5630 6 месяцев назад

great video, does this apple for edexcel questions btw?

@GingerMathematician 6 месяцев назад

There is a lot of crossover with Cambridge but this video is more useful 🙂 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Wikkld4k56g.htmlsi=KMe2MOSLH-CZcZ3i

@haka5630 6 месяцев назад

@@GingerMathematician will watch

@diegohuber23 Год назад

Keep up with the great work😊

@GingerMathematician Год назад

Will do Diego 🙂 👍

@sanjanavijayavel1696 6 месяцев назад

15, 19, 25, 33 how to find the formula for this????

@GingerMathematician 6 месяцев назад

Difference of differences - more information in my course :-) www.udemy.com/course/igcse-0580-maths-paper-2-exam-workshop/?referralCode=14EF4EDB1E2914A6B29F

@carsntech1 10 месяцев назад

17:21 is it always the difference divided by 6 if its cubed?

@GingerMathematician 10 месяцев назад

Yes 😊

@FearlessNegotiator Год назад

At 17:29 - why 6/6 for the difference ?

@GingerMathematician Год назад

For any cubic, you need to divide by 6 :-)

@Axzern Год назад

Life saver!

@GingerMathematician Год назад

No problem Azan 😊

@drishtidinani 5 дней назад

at 17:35 i dont get it why do you divide 6 by 6. what was the point? what if we dont have 6 and another number should we still divide by 6

@GingerMathematician 5 дней назад

Yes, that is the rule. Whenever we have a third difference, the coefficient of n^3 will be (third difference / 6).

@parsazaman3593 Год назад

Hi.....thank you so much sir......your lectures really help, sir if you help me with the recurring decimals which is pretty complicated topic for me .......... moreover once again I am very grateful to you for making the complex topic easy❤❤.......,.

@GingerMathematician Год назад

I'll add to the list 😊👍

@parsazaman3593 Год назад

@@GingerMathematician ok sir. Thank you so much!💜

@renidhameliya 11 месяцев назад

words cannot explain how helpful this is 🥹🥹🥹 i struggled so much with sequences in year 9 but after watching this im alot more confident ahh hope my test goes well tomorrow!!!thank youu

@GingerMathematician 11 месяцев назад

Glad I could help 😊 Best of luck tomorrow 👍

@rafarabie8510 Год назад

For the nth term that’s involved with the second and third difference do we always divide by the number it’s self before writing down the square numbers or cube numbers and find the difference?

@GingerMathematician Год назад

Divide by 2 for quadratic, divide by 6 for cubic 👍

@aimking8402 Год назад

Thank you for the video it really helped a lot ❤, but I have a question in the equation ar^n-1. If it was division should the ratio be negative?

@GingerMathematician Год назад

Hi Aim King, if it's division then the ratio would be a fraction, i.e dividing by 2 would mean r = 0.5 😊👍

@aimking8402 Год назад

@@GingerMathematician oh ok thanks❤

@PawanSingh-ws3ox Год назад

thanku i was topper in term exam

@GingerMathematician Год назад

Fantastic Pawan well done 👍

@a.b.dbeatthebest5900 5 месяцев назад

1, 2, 4, 7, 11, 16, 22, 29 ........ what would be it nth term , sir please reply

@a.b.dbeatthebest5900 5 месяцев назад

difference is increasing by 1 ????

@GingerMathematician 4 месяца назад

0.5n^2-0.5n+1

@a.b.dbeatthebest5900 4 месяца назад

@@GingerMathematician thankyou , need a quick revision video before exams in which almost all concepts are slightly touched , exams are due in 19 days

@sakethkakarla4530 Год назад

This video was really helpful. Thank you so much! Can you please do a video on factorization? That would be really helpful!!! Again thx for all the work that you do.

@GingerMathematician Год назад

Hi Saketh, thanks for the support 🙂👍 Are you looking for an All of iGCSE Factorising style video?

@sakethkakarla4530 Год назад

@@GingerMathematician 0580 would be great mainly

@sakethkakarla4530 Год назад

I think a lot of people are taking the same course and having trouble with it. I know a lot of people in my class that also needed help with the same. Complex factorization would be great. Along with the indices simplification if you know what I am talking about. Thank you so much!

@jh-qc2ug 2 года назад

great video, can you please make one for chapter 10 straight lines

@GingerMathematician 2 года назад

Probably won't have time before Friday 😕 Sorry!

@jh-qc2ug 2 года назад

@@GingerMathematician oh, it's okay no rush thank you very much tho

@anyakale6491 Год назад

Just in summary, (i am little confused here, i would be great if you could help me out with this) at time 2:39 you mentioned that for quadratic equation, divide the difference by 2 and at time 17:21 you said that for cubic equation, difference should be divided by 6. That means, whatever the difference is , ex. 4 as second difference i would still divide it by 2 and if 4 is my third difference, i would still divide it by 6, right? Thank you.

@GingerMathematician Год назад

Exactly Anya - cubics don't come up that often but if they do, take the 3rd difference and divide by 6 🙂👍

@anyakale6491 Год назад

Thank you soo much 🤩

@monke7542 8 месяцев назад

Holy shit. Thank you so much.

@GingerMathematician 8 месяцев назад

Glad it was helpful with a reaction like that 😉

@intelblox7354 9 месяцев назад

Could anyone please tell me the nth term of the sequence - 5, 13, 25, 41, 61 Ive tried to solve it but keep getting stuck

@GingerMathematician 8 месяцев назад

Should I make a follow-up on quadratic sequences? :-)

@sanjanavijayavel1696 6 месяцев назад

hi yes pls it really hard , and u explain it really well @@GingerMathematician

@cxillvixedits3626 2 года назад

want a video on diffrencation & co ordinate geo please.....tomorrow I have 0580 paper 4 exam

@GingerMathematician 2 года назад

Differentiation already done: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gQ3VRV6f7J8.html

@compostsfertilizers5471 Год назад

Thanks for posting this. Means a lot.

@GingerMathematician Год назад

No problemo 🙂 👍

@xel1346 Год назад

Sir can you do simultaneous equation questions of number seq

@GingerMathematician Год назад

Do you have a specific question in mind? 🙂

@xel1346 Год назад

@@GingerMathematician questions like q9 on 2015 Oct Nov v 41 The total number of 1 cm lines needed to draw both diagram 1 and 2 is 17 The total number of 1 cm lines needed tocdrawall of the firat m diagrams is 2/3 n^3 +an^2 +bn Find value of a and b

@Maaaa555 2 года назад

hello, thank you for this video, i have a question should i practice all variants or just the one ive registered for which is paper 22 and papern42

@GingerMathematician 2 года назад

Prioritise the 22 42 variants for sure, then expand out to 21 41 and 23 63 afterwards 🙂👍

@cyan._1d3 Год назад

Hi!!! Sir i wasnt able to solve the sequence 1,3,6,10,15 using the method you gave for the second difference, i dont know what im doing wrong..

@GingerMathematician Год назад

Should be 0.5n^2+0.5n 👍

@cyan._1d3 Год назад

@@GingerMathematician yess but how can i do it with that method?

@corefraag1312 Год назад

have mocks tommorow wish me luck

@GingerMathematician Год назад

Best of luck Core 😊👍👍

@ansonlee9401 Год назад

Thank you

@GingerMathematician Год назад

No problem Anson 😊

@m01zz55 2 года назад

Hi sir a question, I'm taking IGCSE 0980 Maths and not IGCSE 0580... Is there any difference since I was looking at your prediction paper for 0580 but I couldn't find anything for 0980 which made me panick a little.

@GingerMathematician 2 года назад

Hi there, no difference at all between 0580 and 0980 aside from the grading used (9 - 1 vs A* - G) 🙂👍

@m01zz55 2 года назад

@@GingerMathematician Thanks a lot, also if you don't mind me asking the IGCSE in one hour topics where you do all sorts of past paper questions, is that enough for us to be able to answer the questions which are possible to come or do you recommend us practice more?

@user-tu1dm8pu2f Год назад

How to find nth term for this sequence -1, 0, 7, 26, 63, ...

@user-tu1dm8pu2f Год назад

Please help me ginger mathematician

@GingerMathematician Год назад

(n-2)^3?

@user-tu1dm8pu2f Год назад

The answer is (n-1)^3-1 but don't know how to solve it

@aidenayyash8067 7 месяцев назад

love you man

@GingerMathematician 7 месяцев назад

Thanks Aiden 🙂👍

@angelinewong9653 2 года назад

could you do a video on paper 6? i have my paper 6 exam in 2 weeks

@GingerMathematician 2 года назад

Hi Angeline, check out my Paper 6 playlist, I've done 3 / 4 walkthroughs 🙂: ru-vid.com/group/PLYNwTLhq9xZagalx8-j8jMYGdQraCKutk

@alankritaaaas Год назад

what if the sequence is 0,1,4,9,16? and we have to find the nth term for this sequence? i know it's the 2nd difference, but when i subtract 0,1,4,9,16 from 1n^2, i get different answers and that too negetive. pls respond as my exams are near. thank you!

@GingerMathematician Год назад

Hi Acai you should subtract 1, 4, 9, 16, 25 from 0, 1,4,9,16 giving you -1, -3, -5, -7 where the nth term is -2n +1 so the answer is n^2 - 2n + 1 or (n - 1)^2 😊👍

@alankritaaaas Год назад

@@GingerMathematician thank you !!

@hasinayakob6284 Год назад

hi, was a little confused about 3rd difference, so for 3rd difference do you always divide your 3rd difference by 6? because the questions you did was 6 divided by 6 so i thought maybe you had to divide it by itself and use 1 in all cases

@GingerMathematician Год назад

3rd differences (cubics) do not come up often, but yes always divide by 6 👍 (and 2nd difference quadratics divide by 2) 🙂

@aura9145 Год назад

When you are figuring out the nth term of a sequence with 3 differences do you always divide the sequence with 6 or does it vary on something? Your Help would be greatly appreciated!

@GingerMathematician Год назад

Nope with a third difference, always divide by 6 😊👍

@aura9145 Год назад

@@GingerMathematician Thank You

@omeshavihangika6720 Год назад

What if we have a question like this "The formula for the nth term in the sequence 1, 3, 6, 10... is n(n+1)/k, Where k is an integer. Find the value of k." Please let me to know how to solve this question

@GingerMathematician Год назад

Hi Omesha, I would solve the quadratic sequence in the wy shown in the video to get 0.5n^2 + 0.5n, then factorise the 0.5 to get n(n+1) / 2, which means that k must be 2 :-)

@omeshavihangika6720 Год назад

@@GingerMathematician thank you so much❤️

@machinahonda9835 Год назад

Thanks for the cool technique to solve for quadratic and cubic sequences. I find it works well if the remainder of n^2 or n^3 are simply constant. If the formula contains further functions of n, it will not work. e.g. for a quadratic formula which goes like 0.5n^2+0.5n or n^3-5n-2. The series given is 1,3,6,10,15,21 and -6,-4,10,42,98,184. In both these examples I can’t work out the formula after n^2 and n^3 because the remainders are not constant numbers. Could you help?? Thanks you so much for great work!

@GingerMathematician Год назад

Then for a n^2 sequence, the sequence left over will be linear so you can find the linear nth term normally and add the two nth terms together 🙂👍

@machinahonda9835 Год назад

@@GingerMathematician thank you very much! 😀

@faryhanoor4114 Год назад

Sir in 2:45 you said if quadratic we divide by 2 , so what if it is cubic or more,, for example n^4 then ?

@GingerMathematician Год назад

Cubic divide by 6 😊👍

@faryhanoor4114 Год назад

Thank you for the response, one more thing.. can it be more than cubic, what I mean is 4th or 5th difference in sequences?

@GingerMathematician Год назад

@@faryhanoor4114 not on iGCSE 👍

@faryhanoor4114 Год назад

One more thing I wanted to ask... in quadratic sequence I did a qn in which I got the 2nd difference as 3 so I did 3/2 n^2 for the first 4 terms and then subtracted it from the original sequence. However, the answer that I got after subtracting wasn't the same. ForExample in 4:02 you got the subtracted answer as 3 for each but I got different.... That's where I get confused, kindly let me know what to do for those types of qns... and thank you for your previous reply sir! Glad to have a teacher like you!

@faryhanoor4114 Год назад

@@GingerMathematician kindly reply

@moutazalhaj9197 3 месяца назад

Please take my heart I don't want it anymore it's yours

@GingerMathematician 3 месяца назад

😕

@jumanahekal Год назад

How is this for year 11 I'm year 8 and I took this lesson in school

@GingerMathematician Год назад

You'll be ready for IB Maths Higher Level in due course 😊👍

@roshinipriyangi5443 Год назад

Hello, i have a question as '(1×3), (2×4), (3×5),...' the answer should be n(n+2) for the nth term. but i cant understand it. pls can u explain it to me by text in the comments? thank you very much for the lesson

@GingerMathematician Год назад

Won't have chance to give a detailed response here Roshini, sorry 👍

@roshinipriyangi5443 Год назад

@@GingerMathematician yh its ok i actually got it. By the way thanks for the lesson. It helped me alot.

@adrianneadonis7401 11 месяцев назад

Thanks so much ❤

@GingerMathematician 11 месяцев назад

No problem Adrianne 😊👍

@GCSEALevelMaths 2 года назад

This is helpful sir good job!!!

@GingerMathematician 2 года назад

Not long until the first iGCSE 0580 exam on Friday!

@GingerMathematician 2 года назад

As for the collaboration, gonna be pretty busy til mid-June - can you send some ideas across to gingermathematician@gmail.com and can take a look 🙂👍

@mysticgoat8699 11 месяцев назад

I got a question for cubic when dividing the first sequence do you always use 6 or just divided with the sequence

@GingerMathematician 11 месяцев назад

Always divide by 6 :-)

@Aashrita-ps8ki Месяц назад

Which grade is this for pS:TYSMMM

@GingerMathematician Месяц назад

Grade 9 / 10

@GameWolf1107 11 месяцев назад

Hey! Do you always divide by 2 when its the second difference?

@GingerMathematician 11 месяцев назад

Yup every time 👍

@catzilla836 7 месяцев назад

ur a legend

@GingerMathematician 7 месяцев назад

Doing my best 🙂

@krishthegreat7726 2 года назад

Sir which papers do I do for paper 2 maths(like from which year to which year) I have maths paper 2 day after tom. It will be very big help

@GingerMathematician 2 года назад

Always start with the most recent (March 2022) and work your way backwards 🙂👍

@krishthegreat7726 2 года назад

@@GingerMathematician thanks a lot sir

@saylalisaBLACKPINK 4 месяца назад

It doesn't always work the way you taught... Like sequence 16,25,36,49,64 Please reply i have paper 4 in 2 days Past paper code: 0580/43/m/j/17 last question

@GingerMathematician 4 месяца назад

It will still work, maybe I will make a follow up video...

@bkiragu15 Год назад

Is it for both math IGCSE Extended and core or just Extended

@GingerMathematician Год назад

Mostly Extended but plenty of Core skills here too 🙂 👍

@mathsworld7945 2 года назад

I got a 6 close to a 7 (thats mediocre for year 7)

@GingerMathematician 2 года назад

Keep working hard and you'll make progress 🙂👍

@mathsworld7945 2 года назад

@sissi9100 11 месяцев назад

3:27 If the number behind the n was a 3 for example, do we multiply starting from 3 like 3x3, 4x4.. instead of 1x1,2x2.. and what if after finding the difference they’re not all the same number, I don’t know if it’s my mistake but i’m really confused

@GingerMathematician 11 месяцев назад

You would then write the 3n^2 sequence instead :-)