CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

Any 1 method works here and preferably the row transformations to get the inverse of a given matrix Although column transformations are equally appreciated

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Amit Kumar 7 years, 6 months ago

Row or column

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ANSWER

Express the matrix B =[2 -2 -4] as the sum of [-1 3 4] [1 -2 -3] a symmetric and a skew symmetric matrix.

Posted by Anurag Gupta 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Please help... Integration of (x^x)dx

Posted by Tamoghna Roy 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is the domain of the function:sin-1 x

Posted by Account Deleted 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Shreeparna Talukdar 7 years, 6 months ago

[-1,1]

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First differentiation is tangent to curve then what is second differentiation?

Posted by Hemant Gupta 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Science Student 7 years, 6 months ago

First of all first differentiation is the slope of tangent. Second differentiation is the rate of change of the slope of tangent w.r.t x.

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ANSWER

A card from a pack of 52 cards is lost. From the remaining of 52 cards is lost. From the remaining cards of the pack, two cards are drawn at random and are found to both clubs. Find the probability of the lost card being of clubs,

Posted by Ayushi Verma 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Question number 19 of ncert Exercise number 3.2

Posted by Sachin Verma 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

By whome ncert examplar is published.

Posted by Shubham Bhatt 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Rishabh Sahu 7 years, 6 months ago

Ncert.

1Thank You

ANSWER

Ingreat x÷x-3

Posted by Sonam Vishwakrma 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Aisha Gupta 7 years, 6 months ago

Let x-3= t. => x=t+3 d(x-3)/dx=dt/dx =>1=dt/dx =>dt=dx. now Int (t+3)dt/t =int(1+3/t) dt = t+3logt =(x-3)+3log(x-3)

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ANSWER

A = [b2+c2 a2 a2 b2 a2+c2 b2 =4a2b2c2 c2 c2 a2+b2]

Posted by Hemant Yaliballi 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Tan-1 √x=1/2cos-1 ( 1- x/1+x), xE[ 0, 1]

Posted by Kavindra Singh Waldia 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Koi please help kardo inverse trigonometry aur differtiantion main jo domain and range hai usko kese solve karte hai koi you tube pe link ho to please send kardo contact me .it's very important for me. I will give you my instagram Id @_deepanshu_16_

Posted by Deepanshu Jaiswal 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Rishabh Sahu 7 years, 6 months ago

This app itself has links for videos . No need to go anywhere else now.

1Thank You

ANSWER

IF Ais a square matrix of order 2 with all its elements 1 then find A^100

Posted by Jatin Malik 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Abhinav Sharma 7 years, 6 months ago

First Find A^2 , then find A^3 and if required find A^4 then by seeing the result generalize the result for A^100 That's it.

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Sam falan

Posted by Prashant Soni 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

F(x) =log(1+x/1-x). Perove that 2 f(x)=f(2x/1+x²)

Posted by Vivek Mandal 7 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Vivek Mandal 7 years, 6 months ago

Didnt get it

1Thank You

Rahul Ajmera 7 years, 6 months ago

(1-x/1+x)×(1-x)(1)-(1+x)(-1)/(1-x^2) =(1-x)/(1+x)×(-2x) /(1^2-x^2) =(1-x)/(1+x)×(2x)/(1-x)(1+x) =(2x/1+x^2). (Hence Prove)

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integrate 2-3sinxdx/cos²x

Posted by Duvvada Jagannadham 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Aisha Gupta 7 years, 6 months ago

=int(2sec²x-3tanx.secx)dx = 2int sec²xdx-3int tanx.secxdx =2tanx-3secx+c

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Two tailors A and B earn Rs 300 and Rs 400 per day respectively. A can stitch 6 shirts and 4 pairs of trousers B can stitch 10 shirts and 4 pair of trousers per day. To find how many should each of them work and if its desired to produce atleast 60 shirts and 32 pairs of trousers at a minimum labour cost, formulate this as an LPP.

Posted by Cjeidn Chehjf 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

G Mk 7 years, 6 months ago

hao

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ANSWER

Procedure of rank improvement

Posted by Rhiju Singh 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is the difference between real numbers and complex number?

Posted by Jeetu Sharma 7 years, 6 months ago

CBSE > Class 12 > Mathematics

3 answers

Science Student 7 years, 6 months ago

Numbers which can be represented on a number line are real like √2, 5.6666.... etc. And those cannot are imaginary like negative roots.

1Thank You

Jeetu Sharma 7 years, 6 months ago

Thats not a fair answer for this

1Thank You

Adil Faiz 7 years, 6 months ago

All negative root no. are called complex no. And all other are called real no.

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ANSWER

Find "x" [1 2 3 ; 4 5 6 ]x=[-7 -8 -0 ; 2 4 6 ]

Posted by Devappa B 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Iog hool rootof 1_ Sinx /1+Sinx x

Posted by Kishan Kesharwani 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Differentiate x logx log(logx)w.r.t. x

Posted by Palwinder Singh 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Anupam Shekhar 7 years, 6 months ago

(1+log(logx)) (1+logx)

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ANSWER

Cos(a+b)

Posted by Achal Bajpai 7 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Achal Bajpai 7 years, 6 months ago

Cos(a)cos(b)+sin(a)sin(b)

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Give 10 examples of one-one function ..... expected atleast 1 example from each .. plzZ .. .. give examples as fast as possible.

Posted by Ayushi Sambyal 7 years, 6 months ago

CBSE > Class 12 > Mathematics

3 answers

Saksham Salhotra 7 years, 6 months ago

0Thank You

Aditya Singh 7 years, 6 months ago

Open google and search there

1Thank You

Ayushi Sambyal 7 years, 6 months ago

10 nhi 20 examples

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ANSWER

I had listen ,this time the board xm will be conduct on the month of feb.is it true...plzz make me sure about it.

Posted by Bhakti Katariya 7 years, 6 months ago

CBSE > Class 12 > Mathematics

3 answers

Chirag P 7 years, 6 months ago

It will be conducted in the last week of feb most probably

1Thank You

Chirag P 7 years, 6 months ago

Yes it is true

1Thank You

Gud Luck ? 7 years, 6 months ago

No.. How can it be?

0Thank You

ANSWER

Check community and associativity of the given binary operation '*' on N Defined by a*b = a to the power b for all a,b belongs to N

Posted by Neha Choudhary 7 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

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