If $A = 130^\circ $ and $x = \sin A + \cos A,$ then
$x > 0$
$x < 0$
$x = 0$
$x \le 0$
Find the value of $\sin \frac{31 \pi}{3}$.
The value of $\cot \frac{\pi}{24}$ is :
Find the value of the trigonometric function $\sin \left(-\frac{11 \pi}{3}\right)$
If $x = a{\cos ^3}\theta ,y = b{\sin ^3}\theta ,$ then
$tan\,\, 20^o + tan\,\, 40^o + \sqrt 3\,\, tan\,\, 20^o tan\,\, 40^o$ is equal to