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

f(x) = cosX/1+sinX f'(x) = (1+sinX)×(-sinX) - cosX(cosX) --------------------------------------------------- (1+sinX)^2 [By quotient rule] = -sinX - sin^2X - cos^2X --------------------------------------- (1+sinX)^2 = -sinX - 1 --------------- (1+sinX)^2 = -1 ---------------- (1+sinX)

0Thank You

ANSWER

Using principle value eveluate cos inverse (cos 2π/3)+sin inverse (sine 2π/3)

Posted by Ankit Balhara 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 6 years, 11 months ago

0Thank You

ANSWER

Which book and sample paper of mathematics is best for board exams ???

Posted by Manshvi Goyal 5 years, 8 months ago

CBSE > Class 12 > Mathematics

4 answers

Santoshee Prajapati 6 years, 11 months ago

First complete ncert maths

1Thank You

Deepak Jindal 6 years, 11 months ago

Xam idea and Ncert.

1Thank You

Swastik Singh 6 years, 11 months ago

Chapterwise is also a good option for the preparation of board

1Thank You

Ritik Thakur 6 years, 11 months ago

you should prefer Xam idea for your preaparation of 12th. You will find all types of model paper in it as per the syllabi and marking schemes. ?

1Thank You

ANSWER

Integration| cosπx|

Posted by Tanish Bhutani 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Harshit Singh 6 years, 11 months ago

complete the question tell the limit

0Thank You

ANSWER

Tan invers x ka squr plus cot invers x ka squr = π/4 solve for x

Posted by Vansh Bansal 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Ways of integration

Posted by Geeta Sharma 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

both stands for union or intersection?

Posted by Jeetu Kumar 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

{sin x-cosx,. If x not equal to π/2 -1,. If x=0

Posted by Kashish Khandelwal 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Angle b/w a×b nd b×a in 3d

Posted by Komal Agarwal 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Sagar Saini 6 years, 11 months ago

180

1Thank You

ANSWER

Sin inverse root 3 plus 1 over 2root2

Posted by Hemant Gupta 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the interval in which the function f is given by f(x)=x³+1/x³ is strictly increasing

Posted by Vinayak Lagwal 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 6 years, 11 months ago

(-infinity to -1)

0Thank You

ANSWER

Find principal value of cos–¹(cos2π\3) + sin–¹(sin2π/5)

Posted by Ritviz Prakash 6 years, 11 months ago

CBSE > Class 12 > Mathematics

2 answers

Bharat Sukhija 6 years, 11 months ago

16π/15

0Thank You

Vanshika Arora 6 years, 11 months ago

2π/5

0Thank You

ANSWER

Venn diagram

Posted by Rohan Raj 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Urn a contains 1 white ,2 black and 3 red ball. Urn be contains 2 white 1black and 1 red balls and urn c contains 4 white 5 black and 3 red balls one urn is selected at random and two balls are drawn late e be the event that the ball drawn are one white and one red and E1,E2,E3 be event that the selected urns are a,b,and c respectively. Now find the following. (1) P(E1) (2) P(E2) (3) P(E/E3) (4) P (E/E1)

Posted by Sandeep Pramanik 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 6 years, 11 months ago

1/3 1/3 2/11 1/5

0Thank You

ANSWER

Let f:R-->R be defined as f(x) = 10x + 7. Find the function g: R-->R such that gof = fog= Ir (i.eLetter I with subscript r).

Posted by Shemin Majeed 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Bharat Sukhija 6 years, 11 months ago

x-7/10

0Thank You

ANSWER

Intregal of sinx

Posted by Ravi Chaudhary 6 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Komal Dhingra 6 years, 11 months ago

-cos x + c

1Thank You

ANSWER

if a vector + b vector + b vector is equal to zero show that a vector cross b vector is equal to b vector cross c vector is equal to c vector cross a vector

Posted by Ankit Patel 6 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

integration of 1 by 1+ sin x

Posted by Ruchika Arora 6 years, 11 months ago

CBSE > Class 12 > Mathematics

2 answers

Nehal Mehta 6 years, 11 months ago

=1/1+sinx × 1-sinx/1-sinx [rationalising] =1-sinx/1-sin^2x = 1-sinx/cos^2x = 1/cos^2x - sinx/cos^2x = sec^2x -secxtanx = tanx - secx + c [integrating both terms]

0Thank You

Dikshnat Yadav 6 years, 11 months ago

X minus cosx

3Thank You

ANSWER