E
Editor
Sep 18, 2022
If $\tan^{2}\theta=1/3$ then $\theta$=
Difficulty: Easy
A:
$\frac{\pi}{6}'\frac{\pi}{3}'\frac{2\pi}{3}'\frac{5\pi}{6}$
B:
$\frac{\pi}{6}'\frac{7\pi}{6}'\frac{5\pi}{6}'\frac{11\pi}{6}$
C:
$\frac{\pi}{4}'\frac{4\pi}{8}$
D:
$\frac{7\pi}{6}'\frac{11\pi}{6}'\frac{\pi}{2}$
ID: 63273dbaca83163ac3a13073