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

Let : u(x) = sinx v(x) =|x| hence (vou)(x) =|sinx|=f(x) Since, u(x) and v(x) are continuous function, therefore; (vou) (x) or f(x) is also an continuous function,

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Find the value of sin–¹(sin3π/5)

Posted by Divya Makhija 6 years, 5 months ago

CBSE > Class 12 > Mathematics

4 answers

Ankush Verma 6 years, 5 months ago

2pi/5

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Ankush Verma 6 years, 5 months ago

Find Sin^-1(3pi/5) Sol:let Y=sin^-1(sin3pi/5) Siny=sin(3pi /5) Y=(108°) [3*180°/5=108°] [sin^-1= - pi/2,pi/2] So, it is not possible y=108°.

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S.....Sharma☺??? .. 6 years, 5 months ago

2π/5

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Utkarsh Trivedi 6 years, 5 months ago

3π/5

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Sin^-1((sinx +cosx)÷_/2)

Posted by Anjali Raghav 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Utkarsh Trivedi 6 years, 5 months ago

sin^-1{sinx(1/√2)+ cosx(1/√2)} =sin^-1{sin(x)cos(π/4)+ cos(x)sin(π/4)} =sin^-1{sin(x+π/4)} =x+π/4

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Let f:R to R be defind as f(x)=10x+7.find the function g:R to R such that fog =gof=1

Posted by Abhinash Kumar 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Let A & B are symmetric matrix of same order than show that A +B is a symmetric matrix

Posted by Vivek Kumar 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If A = 1 3 3 then find adjA 1 4 3 1 3 4

Posted by Khushi Pargain 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Hiiii friends Kasai ho sab

Posted by Himanshu Arya 6 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

S.....Sharma☺??? .. 6 years, 5 months ago

Bhai phadai p dhyan dega to acha hoga baad m bhut time milega haal chaal puchane ka because hum kabhi asa kuch nahi karna chahea jisa baad m guilt feel ho okkk

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Ajay Singh Rajput 6 years, 5 months ago

To good and you..?

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Hiiii Friends

Posted by Himanshu Arya 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Ishika Halder 6 years, 5 months ago

Can you plzz help me in compartment exam

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Determine weather the relation R defined on set are of all real numbers as R={(a,b):aRb,a-b+3^(1/3)RS} where S is set of all irrational numbers is reflexive, symmetric and transitive

Posted by Saini Youtube 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Sinx=sinx/10

Posted by Abhay Rai 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Sajid Ali 6 years, 5 months ago

X=90°

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Cosec×square of (ax+b)

Posted by Sona Sharma 6 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Dolly ?️ 6 years, 5 months ago

Is yr derivative

1Thank You

Dolly ?️ 6 years, 5 months ago

2cosec(ax+b).(-cot(ax+b).cosec(ax+b)). a -2.a.cosec^2(ax+b).cot(ax+b)

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A and B are two non-singular matrices such that A^6=i and AB^3=BA(B#I).find the value of k so that B^k=I

Posted by Gyanam Raj 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If the system of equations -ax+y+z=0,x-by+z=0 and x+y-cz=0 (a,b,c#-1)has a non-zero solution . , then find the value of 1/1+a+1/1+b+1/1+c

Posted by Gyanam Raj 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is identity matrix,if AB=A and BA=B, then prove that A and B are idempotent matrix

Posted by Gyanam Raj 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

How to solve elementary method

Posted by Rishav Raj 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Gyanam Raj 6 years, 5 months ago

Kiska matrix ka na

3Thank You

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Which book should I use for board exams

Posted by Harshpreet Singh Barn 6 years, 5 months ago

CBSE > Class 12 > Mathematics

5 answers

S.....Sharma☺??? .. 6 years, 5 months ago

Ncert plus ncert exampler and for higher practice RDsharma

1Thank You

Khushi Pargain 6 years, 5 months ago

Only give preference to ncert

2Thank You

Amish Vishwakarma 6 years, 5 months ago

NCERT Mathematics

1Thank You

Ashish Shrivas 6 years, 5 months ago

Ncert and Rds

2Thank You

Aaditya Rathore??? 6 years, 5 months ago

U r from where

1Thank You

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How to solve b-9a+12

Posted by Sanket Patil 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Simplest form

Posted by Adesh Kumar 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Check the differentiability of 2x^2-x 5x-4

Posted by Meenakshi Tewari 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Lovely Dhawan 6 years, 5 months ago

4x-x(5)+5x×1-0 then again differentiate d^2y/dx^2

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Find the values of x.y.z in the following matrix equation x+y 2/5+z xy= 6,2/5.8

Posted by Rakshitha Racchu 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

if x=a(theta-sin theta), y=a(1+cos theta) find d square y /d x square

Posted by Manjinder Waheguru Singh 6 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Ruchi Mishra 5 years, 3 months ago

1/4a cosec power 4 theta /2

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Dolly ?️ 5 years ago

Then, dx/d theta =a(1-cos theta) & dy/d theta =-a( sin theta) Then dy/dx=(sin theta) /(cos theta - 1)

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How to write maths lab manual?

Posted by Monu Kumar 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Sia Mourya 6 years, 5 months ago

Mr. There is no lab manual in maths

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1into1

Posted by A N 6 years, 5 months ago

CBSE > Class 12 > Mathematics

3 answers

Natasha Sharma 6 years, 5 months ago

I think noone can give such a tricy question like u bro

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Himanshu Shekhar 6 years, 5 months ago

1Thank You

Dolly ?️ 6 years, 5 months ago

1Thank You

ANSWER

Part D important 5 mark questions

Posted by Vaishnavi Turakoti 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Y=(sinx)cos

Posted by Technical Bhai 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

2+18

Posted by Rameshwar Prasad 6 years, 5 months ago

CBSE > Class 12 > Mathematics

3 answers

Natasha Sharma 6 years, 5 months ago

Seriously yar if not have ques then no need to ask these bro

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Shaina Rajput 6 years, 5 months ago

What a question? .....btw ans is 20

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Rameshwar Prasad 6 years, 5 months ago

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What is the marking scheme for private candidate appearing in 2020 improvement exam in mathematics as internal assessment is issued

Posted by Divyanshu Sinha 6 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

cot inverse (√1+sinx +√1- sinx/√1+sinx - √1-sinx)

Posted by Manjinder Waheguru Singh 6 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Suman Bharti 6 years, 5 months ago

cot inverse [√(cos^x/2+sin^x/2+2sinx/2.cosx/2)+√(cos^x/2+sin^x/2-2sinx/2.cosx/2)/√(cos^x/2+sin^x/2+2sinx/2.cosx/2)-√(cos^x/2+sin^x/2-2sinx/2.cosx/2)] =cot inverse [√(cosx/2+sinx/2)^2+√(cosx/2-sinx/2)^2/√(cosx/2+sinx/2)^2-√(cosx/2-sinx/2)^2] =cot inverse [(cosx/2+sinx/2+cosx/2-sinx/2)/(cosx/2+sinx/2-cosx/2+sinx/2)] =cot inverse [(2cosx/2)/(2sinx/2)] =cot inverse (cotx/2) =x/2

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