(\cos\(\cos^{-1}x\)) किसके बराबर है जब \(x\in[-1,1]\)?

What is (\cos\(\cos^{-1}x\)) equal to when \(x\in[-1,1]\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \(\x\)

Step 1

Concept

The expression \(\cos^{-1}x\) gives the angle whose cosine is (x). Hence (\cos\(\cos^{-1}x\)=x).

Step 2

Why this answer is correct

The correct answer is A. \(\x\). The expression \(\cos^{-1}x\) gives the angle whose cosine is (x). Hence (\cos\(\cos^{-1}x\)=x).

Step 3

Exam Tip

\(\cos^{-1}x\) वह कोण देता है जिसका कोसाइन (x) है। इसलिए (\cos\(\cos^{-1}x\)=x)।

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Mathematics Answer, Explanation and Revision Hints

(\cos\(\cos^{-1}x\)) किसके बराबर है जब \(x\in[-1,1]\)? / What is (\cos\(\cos^{-1}x\)) equal to when \(x\in[-1,1]\)?

Correct Answer: A. \(\x\). Explanation: \(\cos^{-1}x\) वह कोण देता है जिसका कोसाइन (x) है। इसलिए (\cos\(\cos^{-1}x\)=x)। / The expression \(\cos^{-1}x\) gives the angle whose cosine is (x). Hence (\cos\(\cos^{-1}x\)=x).

Which concept should I revise for this Mathematics MCQ?

The expression \(\cos^{-1}x\) gives the angle whose cosine is (x). Hence (\cos\(\cos^{-1}x\)=x).

What exam hint can help solve this Mathematics question?

\(\cos^{-1}x\) वह कोण देता है जिसका कोसाइन (x) है। इसलिए (\cos\(\cos^{-1}x\)=x)।