The general value of $\theta $satisfying the equation $2{\sin ^2}\theta - 3\sin \theta - 2 = 0$ is
$n\pi + {( - 1)^n}\frac{\pi }{6}$
$n\pi + {( - 1)^n}\frac{\pi }{2}$
$n\pi + {( - 1)^n}\frac{{5\pi }}{6}$
$n\pi + {( - 1)^n}\frac{{7\pi }}{6}$
Find the general solution of the equation $\cos 3 x+\cos x-\cos 2 x=0$
If $\sin \theta = \sqrt 3 \cos \theta , - \pi < \theta < 0$, then $\theta = $
Solve $2 \cos ^{2} x+3 \sin x=0$
The smallest positive root of the equation $tanx\, -\, x = 0$ lies on
If $\cos \theta = - \frac{1}{{\sqrt 2 }}$ and $\tan \theta = 1$, then the general value of $\theta $ is