The most general value of $\theta $ satisfying the equations $\tan \theta = - 1$ and $\cos \theta = \frac{1}{{\sqrt 2 }}$ is
$n\pi + \frac{{7\pi }}{4}$
$n\pi + {( - 1)^n}\frac{{7\pi }}{4}$
$2n\pi + \frac{{7\pi }}{4}$
None of these
Find the principal and general solutions of the question $\tan x=\sqrt{3}$.
The equation ${\sin ^4}x + {\cos ^4}x + \sin 2x + \alpha = 0$ is solvable for
Find the general solution of the equation $\cos 4 x=\cos 2 x$
The number of solution of the given equation $a\sin x + b\cos x = c$ , where $|c|\, > \,\sqrt {{a^2} + {b^2}} ,$ is
The number of solution of the equation $\tan x + \sec x = 2\cos x$ lying in the interval $(0,2\pi )$ is