Get Answers to all your Questions

header-bg qa

need solution for RD Sharma maths class 12 chapter Inverse Trignometric Functions exercise 3.7 question 2 sub question (v)

Answers (1)

best_answer

Answer:   3

Hint: The principal value branch of function \cos ^{-1} is \left [ 0,\pi \right ]
Given: \cos ^{-1}(\cos 3)

Explanation:

We know that

            \cos ^{-1}(\cos 3)=3,3 \in[0, \pi] \quad\left[\cos ^{-1}(\cos \theta)=\theta \text { if } 0 \leq \theta \leq \pi\right]

Hence, the answer is \cos ^{-1}(\cos 3)=3

Posted by

infoexpert26

View full answer

Crack CUET with india's "Best Teachers"

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