Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Need Solution for R.D.Sharma Maths Class 12 Chapter 3 Inverse Trigonomeric Functions Exercise MCQs Question 7 Maths Textbook Solution.

Need Solution for R.D.Sharma Maths Class 12 Chapter 3 Inverse Trigonomeric Functions Exercise MCQs Question 7 Maths Textbook Solution.

Answers (1)

Answer: x

Hint: Take \cos ^{-1} x=y

Given: \sin \left[\cot ^{-1}\left\{\tan \left(\cos ^{-1} x\right)\right\}\right]

Solution:

\begin{aligned} &\text { Let } \cos ^{-1} x=y \\ &\cos y=x \end{aligned}

\begin{aligned} \sin \left[\cot ^{-1}\left\{\tan \left(\cos ^{-1} x\right)\right\}\right] &=\sin \left[\cot ^{-1}\{\tan y\}\right] \\ &=\sin \left[\cot ^{-1}\left\{\cot \left(\frac{\pi}{2}-y\right)\right\}\right] \\ &=\sin \left[\frac{\pi}{2}-y\right] \\ &=\cos y \\ &=x \end{aligned}  Mention the formula used

Posted by

infoexpert21

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

CBSE practical exams 2026 will be cancelled over non-compliance with guidelines, says board

Latest Question