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 3.14 Question 7 Sub Question 2 Maths Tex.tbook Solution.

Need Solution for R.D.Sharma Maths Class 12 Chapter 3 Inverse Trigonomeric Functions Exercise 3.14 Question 7 Sub Question 2 Maths Textbook Solution.

Answers (1)

Answer: 0

Given: \cos \left(\sec ^{-1} x+\operatorname{cosec}^{-1} x\right),|x| \geq 1

Hint: Since \sec ^{-1} x+\operatorname{cosec}^{-1} x=\frac{\pi}{2}applying it.

Solution: We have,

\begin{aligned} &\cos \left(\sec ^{-1} x+\operatorname{cosec}^{-1} x\right) \\ &=\cos \left(\frac{\pi}{2}\right) \end{aligned}                                                \left[\sec ^{-1} x+\operatorname{cosec}^{-1} x=\frac{\pi}{2}\right]

=0                                                                                            \left[\cos \frac{\pi}{2}=0\right]

Hence, \cos \left(\sec ^{-1} x+\operatorname{cosec}^{-1} x\right)=0

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 Date Sheet 2025 (Out) Live: Class 10, 12 board exam time table at cbse.gov.in; syllabus, sample papers
anam-khan

CBSE Class 12 board exam date sheet 2025 out; exams from February 15 to April 4
anam-khan

When will CBSE Board exam 2025 date sheet be released for Class 10, 12?

Latest Question