If ^ -1 x=y, then ___________. - Vidyadip

MCQ

If $\cos ^{-1} x=y$, then ___________.

A
$-\frac{\pi}{2} < y < \frac{\pi}{2}$
B
$-\frac{\pi}{2} \leq y \leq \frac{\pi}{2}$
C
$0 < y < \pi$
✓
$0 \leq y \leq \pi$

✓

Answer

Correct option: D.

$0 \leq y \leq \pi$

D

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