Matrices & Determinants - Class 12 Maths | NCERT for Boards & CUET 

1:03:56 galat kara hai 2x^2 -9x +12x = 0 , x=0 and x=-3/2 are the solution 1:36:00 ye bhi galat kara hai k = +-2 hoga just normally solve determinant bas beech wala coulumn bachega baaki columns se zero hoga so -3(0-(k*1)) = +-6 2:05:00 adj A wrong hai -17 nahi 17 hoga ps: ye mene point out kara agar koi confuse ho raha ho uske liye, sir ko neecha dikhane keliye nahi, log comment mien aake lad rahe hai bina soche samjhe

there are many boards lecture on youtube for free but apni kaksha lectures hit different

Legends are Here after screwing up chemistry and physics.Legends are serious now,won't wait for last day at all.

2:19 MATRICES 1:04:00 Determinant 2:24:03 Thank you

At 1:36:00, equation of line 3x-y=0. Also k = +/- 2

1:32:49 3x-y =0 1(0-0) =0

Kl exam hai class 12 maths ka mera aur maine zero level se start kr rha hu🤡 only one shot save me Edit after result -- 50 aagye ek din pehle padhkr bhi theory Mai thanks apni kaksha for this one shot series

1:36:00 is not a right answer because if we solve the question to the first row ,the a12 is not equal to the 0 is give the output is 3k=+-6. therefore, the k = -2,2 the answer.

1:36:00 3k = +6 and 3k = -6

2:02:00 sir -1/4 ki jab andar multiply karenge to , ( -4 4 -1 ) ayenge

2:01:39 X= -7/2,Y=5/2,Z= 0

sir thanks for this video very help full i watched the whole and clear whole doubts from basics

2:09:16 x=3 , y=-2 , z=1

Sir According to my calculation at 2:09:03 there will be +17 at a12 position and my answer is coming x=3 ,y=-2,z=1. If I m wrong pls let me know!

2:02:05 B[-1,5,-1]

Also helpful for College students 😊 Thank you Sir🎉

1:35:27 ans k=+_2

1:34:34 k=± 2

Sir at 1:03:00 question number 5 you made a mistake. Answer will be x=0 or x=-3/2 Wrong quadratic solved❤

Sir Matrices ka question no. 5 ka solution wrong hai.. Usme subtract hokar x common aa jayega to quadratic nahi solve karna padega..🙏

At 1:35:25 Let P (x, y) be any point on the line AB. Then area(AABP) = 0 1 3 1 1 0 0 1 = 0 2 x y 1 1 {1(0-y)-3(0-x)+1(0-0)} = 0 ⇒>> 3x - y = 0, which is the required equation of line AB Now, area (AABD) = 3 sq units 1 3 0 1 1 介 0 1 = +3 2 k 0 1 1 1 30 ⇒>> 介 0 1 = +6 k 0 1 1(0-0)-3(0-k) + 1(0-0) = ±6 3k = +6 ⇒ k = +2

1:03:14 sir idhar c hota hai constant but iss equation mein constant hai hi nhi

Legend's watching this lecture one day before final boards 😂

2:02:07 x=-4 y=4 z=-1

sir ne proof of the uniqueness of inverse matrice karwaya hai?

2:01:59 correct value (-4;4;1)

1:41:49 ye trick direct paper me laga skte hai?

1:24:50 my mind: you are my special

Q2 mein equation galat hai 3x-y=0 hoga... 1×0 = 0 hota hai

Best vedio !! Mistakes were not so big , just common mistakes, which you can understand ❤

56:06 imp formula for questions

1:58:00 question is wrong i think ..cause sum of 3 no is +1 and sum of 1+2 -3 is also -1 ..isnt possible ...only possible when 3 =0 ..but in eqn 3=-1 which does not satisfy eqn

Thankyou bhaiya ❤

37:00 multiple of matrix

Sir 1:59:00 me aapne B me value -1 ki jagah 1 rakha hai.. .3rd row 1st element

Sir question number 2 me K ka value +- 2 hoga maine nikala hai

2:19:01 Sir iska answer D hai kyunki dono matrices non square hain question ke according

The overall one shot is good 😊 but you did a lot of mistakes while solving the questions.I am confused that you are from IIT ROORKEE 😮

1:35:00 me wrong he bhi (0-0) 0 hota he to 1 se multiply kiye to 0 na hoga aur niche bhi glti he ..

apka concept acha padate ho but very less problem ....please look try to give more promblems

1:57:28 order of x will be 3X1

Sir there is some mistake at 1:02:22 timing

Sir question no. 2 solutions are wrong because areas exist. See the example number 18 of ncert before the exercise 4.3

1:03:57 x = -3/2 and x = 0 will be the answer

thank you sir love you

Very very helpful for us.... .. Thank you so much ❤

Mai pura syllabus Pure Sal kyu nhi padha Yaar mujhe samjh hi aarha mera time kaha bit gya

2:00:00 last element of B is -1 which results in wrong question

1:03:54 it’s a minor mistake the ans (solve for x) is X=-3/2 or 0

sir matrix er Q.5 er soluation pr 1:02:31 Quadratic Equation (ax^2+bx+c=0 ) pr a=2 , b=3, c=0 hain

Koi hai 9 march wala

sir I am harsh kanojiya I want to get a good job in computer science . but i am very confused because i am getting CSAIML in a good collage and CSE in a average collage what should i do please help😭😭😭

sir you might make a mistake on 1:36:14 in eqation of line and please don't take offense because you viedo are very helpful for me

1:00:52 sir b is undefined remember

1:29:23. Ques practice

1:33 sir 3x-y=0 hoga And K=+_ 2 hoga

Sir apne 12x-9x =3x likhna hai

1:32:58 me ek mistake hai Sir 1(0-0) = 1 likh diye hai wo zero hoga toh line ka equation = 3x-y=0

ky 5,5,5 bhi identity matrix ho skti h

57:53 (7 ki place par 14 ayega sir)

49:07 SYMMETRIC AND SKEW SYMM. MATRICES

Apni kaksha ke lecture sabse achhe hote ❤❤❤❤❤❤❤❤❤one shot me sab samjh aa gaya 😊😊😊😊😊😊😊😊😊😊thank you sir 🙏🙏🙏🙏💙💙💙💙🙏🙏

sir their is going to be a value of k please re check que 2 determinants

May be sir ne jan bucch kr galti ki h taki comment section me comment hote rahe kyuki itna aache se padhane ke baad koi itni galti nhi kr sakta

sir ur lvl of teaching is insane

Sir notes kahan milega

2.00 ,x=-7/2,y=5/2,z=0

One day before exam 😅

If P=A' P-¹= (A')-¹ (A')-¹=(A-¹)' Than why to find A-¹ and than do it's transpose We can just do p-¹ because p = A'

2:01:55 guys correct answer x=-7/2 , y=5/2 ,z=0 arha hai kya?

1:03:34 is mein apne factorisation kiya par usme toh 12x-9x direct kat ke 3x ban jata hain aur x ka value -3/2 ban jata hain So please rectify these type of Mistakes Sir Btw you are doing god's work Hope I can score good marks in CUET-2024

Very helpful .......some solving are wrong but concept gets clear.😊

This lacture is helpful for board exam...... Thanks sir

Great explanation

1:00:52 value of c is +3

Bhai mera abhi sirf itf or relation function hua.....baaki ka baaki h abhi 😂😂

Abb shuru kr rha hu kal ke liye 👽

Very good

Sir it's my first lecture of maths before 6days of board exam...really very good sir😊

Done !! 👍

You are the lifeline of middle class boys

2:02 3×3,1×3 ka multiplication kaise ho skta m×n,g×h n≠g

Watching in the morning at 6 AM before exam🙂✌🏻

Sir determinants ke questions number 2 me galti hai

1:35:40 k Exists krega ji aapne determinant galt find kia h ji

just for students who are totally dependent on this lecture. the direct formula for determinant of any matrix A is missing in the lecture. kindly cover it up from somewhere else.

Best video ❤❤

Thank you sir for this lecture 🙏🏻

Inverse trigonometry

Today is 9 march 😂

Thank you sir. 😊

Thank you sir this lecture is really very helpful

33:46 se aage dekhenge

Improvement 💯 waale parsent

Me watching this 2 hrs before preboards exam

Me after getting failed in half yearly and all UT'S and now here to get passed in finals😂

sir how to get these slides notes

9 baje boards exam hai aur 7 baje dekh rha hu 💀💀💀mai last hu kya bhai ? 😢

Very nice and different one shot from others ❤❤❤

1:32:57 pe last me 1(0-0)=1 sir how it possible.?