Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Please solve rd sharma class 12 chapter Indefinite integrals exercise 18.1 question 5 sub question (i) maths textbook solution

Please solve rd sharma class 12 chapter Indefinite integrals exercise 18.1 question 5 sub question (i) maths textbook solution

Answers (1)

best_answer

Answer: -\cot x+c

Hint: You must know trigonometric identities.

Given: \int \frac{\cos 2x+2\sin ^{2}x}{\sin ^{2}x}dx

Solution: \int \frac{\cos 2x+2\sin ^{2}x}{\sin ^{2}x}dx

                =\int \frac{1-2\sin ^{2}x+2\sin ^{2}x}{\sin ^{2}x}dx                    \left ( \because \cos 2x=1-2\sin ^{2}x \right )

                =\int \frac{1}{\sin ^{2}x}dx=\int \cos e\: c^{2}\; x\: dx                \left ( \because \frac{1}{\sin x} =cosec\; x\right )

                =-\cot \; x+c

Posted by

infoexpert26

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

‘Embarrassed’ by NCERT book rationalisation, former advisors want their names removed
anam-khan

CBSE supplementary exam 2023 date sheets out for Class 10, 12; exams start on July 17
anam-khan

CBSE Class 10, 12 supplementary exam application starts; direct link

Latest Question