All of Differentiation in 30 Minutes!! | Chapter 12 | A Level Pure Maths 

👑 Everything you Need to Pass your AS Pure Maths Exam! A* | AS Pure Maths Revision | Edexcel AQA & OCR - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-UiKVBshIOv4.html If anyone would like to support the channel you can become a member here: ru-vid.com/show-UCStPzCGyt5tlwdpDXffobxAjoin or buy me a coffee here: www.buymeacoffee.com/gcsemathstutor Thank you for all of your support! 😁🙏🏼 New Discord Link: discord.gg/nRMtgr5AWA 👑

Thank you so much this amazing! You helped me get through my GCSE’s and now my Alevels, I can’t begin to explain how grateful I am for your channel 😊❤️

I don’t even have 30mins😭😭

At 30:3, where did the 0.9825 come from? Because you said that the answer from part a)i) was 90.82951062 and I got that answer as well, so I'm really confused 😵‍💫

30:41 why do you put 0.9825 instead of 90.8295

At 30:34 where did you get 0.9825 from?

Sir you literally saved my life, my teacher was so fast at explaining this i couldnt understand, but now i do, thx!

Thank you for this! This really helped me with my modelling homework.

im a homeschooled a-level student and am supposed to be half way through differentiation but thanks to your video i've learnt all the concepts of it :). Imma go into class knowing everything lol 😅 but thanks for helping.

I'm not from England but I'm doing as level and these examples seem too easy, and its the same for most your A level videos, can you please do more challenging questions. Your videos got me an A for GCSE but since questions vary a lot in terms of difficulty on as level can you please do more difficult examples.(CIE exam btw)

Kudos to u sir for my A** in Maths! Taking it forward and equally as useful now at A-level :))

Hi Sir, Thank you so much for all these videos, they are very beneficial! I have a question about the modelling with the differentiation problem. At 31:09 I was confused about the 0.9825, where is it from (I substituted 90.8 and got a local minimum cost as well, however, didn't get the exact answer as yours- I got 0.004 - am kind of confused)?

30:42 you accidentally put 0.9825 it should be 90.8 as that’s the value of V

Great video sir happy new year for 2022!! Congratulations on surpassing 70k subscribers!!

Hi Sir, I just wanted to ask that when you have completely uploaded AS pure, are you also going to upload A2 pure Mathematics.

Dang this is wayyyyy easier thsn people portray it to be 😂😂

The sketch is incorrect at 15 minutes in. It has an x^3 term, you have drawn a graph of x^2. The answer is still correct though, just that the gradient is positive in those regions, which it is not in the graph you have drawn. But thank you for the content, your explanations are really clear!

GODSEND MAN 🔥you’re an incredible help thank you so much 🙌 these are made so well 🐐

I just watched this whole thing without knowing what the guy was talking about cause I thought this was revision for my mocks (I'm in year 11)

just in time for my exams!!! tysm

Whooo, the calculus videos are out!!

The backround music in your videos is really nice and relaxing haha

Im using this for gcse fm and its so helpful, thank you for these videos

is this also for edexcel ?

Thank you so much. I found this video to be really helpful and to be easy to understand.

Error on part (b)

Mr, for the first question you attempted for finding the interval for which x is increasing was wrong because where x

Thank you so much. This was extremely helpful! :)

I have liked the video:)Keep it going

much love brotha, you taught me well

30:29 how do u get 3000/0.9825 where does the denominator come from can someone help im confused, isnt v 90.8

At 30:33 I think you wrote v wrong. It should be 90.8295 and not 0.9825 ??

This is amazing explanations , I love it

14:40 the question asks for increasing so it can't be including 0 as that's stationary, correct? I just got confused because he wrote 'greater than or equal to' rather than 'greater than'

sir what about chain rule? i would really appreciate your reply.

Hi I am curious how does the +6 after 24x on the right side get eliminated? Thanks. Or is it because left hand side we divide by 6 so we also +6 on right hand side be divided by 6? Then +6 should be 1 right instead of disappeared

thank you

When we do b ,are we doing this because it’s movement ,ie change of speed ,? Would be worth mentioning,why second derivative briefly ,maybe

Your voice is so clear and kinda sexy haha, no but seriously thank you for going slowly on these questions and getting right to the important steps and actually using relatable questions that I can revise with. Helped me a lot with my uni mechanical engineering course

Wonderful

at 30:20, why did you substitute 0.9082 instead of 90.8295

Thank u for getting me a 9 in gcse maths

I love this man so much

Hi! In 30.44 minutes, why did you not divide 3000 by 90.8295 cubed?

It’s genuinely pretty easy when you know technique ,at this level

thank you so much

15:18 should be x3 as if x=2 or x=3 then the gradient would be 0 and so the equation would not be increasing but constant instead.

why is it 0.9825 at the end ?

for the last one why did you divide 90.8 by a thousand for part b

14:15 how do you know that the quadratic is greater than or equal to 0? why not just greater than??

useful!!!

14:20 surely it can't be equal to because it's meant to increasing, requiring a gradient greater than 0

Thanks, I love ❤️ maths

how do you know you have to differentiate twice?

9:00 why is that -3/2? And not 3/2?

Hello teacher i have GCSE exam this year can you teach online if i pay

sir at 30:30, why did you use 0.9825 instead of 90.8295?

At 3: 35 what if you do x as 3, the 3 × 2 = 6 and thats wrong isnt it?

last question last part u can use cruise control so it is possible

Yea the 0.9825 is making mi crazy

For the last question part b shouldn't the answer be 3000/90.8^3=0.004007..?

Thank you so much for this!!

Hello, does anyone know what the full video of tangents and normals is titled on this channel?

at 30:32 can someone please explain why v was substituted as 0.9825

is this following the edexcel spec?

Thank you, thank you! You saved my life haha

Do you have a playlist of topics for A2 9709 topics.

11:55, why'd he write the y=mx+c equation like that?

Hello , when you were explaining first principles you talked about limits what do u mean exactly about that?

shouldn't it be 48 i keep getting 48 on my calculator

My AS Maths starts in 40 minutes 😅

7:09 why * the 5 by 2? i don't get what's happening here

Got to say ,”sorry I’m late I was watching a video on differetation “ boss, just does not cut the mustard (x axis at 4) 🏴󠁧󠁢󠁳󠁣󠁴󠁿🙋‍♂️

❤

I actually laugh at the manipulative way maths works ,got to say very cool

With 5(x+h)2, how are you getting the +2xh?

helps me through aqa lvl 2 further maths

Can this be used for Alevel year 2

12:45 is this answer in this form correct -x/7 + 48/7= y

10:00 how 4x power is (-3/2)

you made a mistake at 30:34

Did you notice there was music playing in the intro.

im so gonna fail 😭

Sir, could you please do this topic at GCSE level, as my IGCSE syllabus (0580) includes this topic but I can't find any of your videos on it

Can I know the reason behind how x is less than 2 and greater than 3 cause nobody explains me that

lord have mercy i hope this saves me

Im literally just bored rn i dont even do maths

anyone else watching at midnight the night before gcses

sa tuingie hio teo

Bro why the click bait title? This is AS not A Level maths. All for the views you brokie