(\cos^{-1}(-x)) किसके बराबर है जब \(x\in[-1,1]\)?
What is (\cos^{-1}(-x)) equal to when \(x\in[-1,1]\)?
Explanation opens after your attempt
A. \(\pi-\cos^{-1}x\)
Concept
The identity is (\cos^{-1}(-x)=\pi-\cos^{-1}x). Do not solve it by treating \(\cos^{-1}x\) as an odd function.
Why this answer is correct
The correct answer is A. \(\pi-\cos^{-1}x\). The identity is (\cos^{-1}(-x)=\pi-\cos^{-1}x). Do not solve it by treating \(\cos^{-1}x\) as an odd function.
Exam Tip
पहचान (\cos^{-1}(-x)=\pi-\cos^{-1}x) होती है। इसे \(\cos^{-1}x\) को विषम फलन मानकर हल न करें।
Login to save your score, XP, coins and progress.
