E
Editor
Sep 18, 2022
If $\csc^{2}\theta=4$ then the value of $\theta$ is
Difficulty: Easy
A:
$n\pi \pm \frac{3\pi}{4}$
B:
$n\pi \pm \frac{\pi}{2}$
C:
$n\pi \pm \frac{3\pi}{2}$
D:
$n\pi \pm \frac{\pi}{4}$
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