If ${\rm{cosec }}A + \cot A = \frac{{11}}{2},$ then $\tan A = $
$\frac{{21}}{{22}}$
$\frac{{15}}{{16}}$
$\frac{{44}}{{117}}$
$\frac{{117}}{{43}}$
Which of the following relations is correct
$\cos 1^\circ + \cos 2^\circ + \cos 3^\circ + ..... + \cos 180^\circ = $
If $p = \frac{{2\sin \,\theta }}{{1 + \cos \theta + \sin \theta }}$, and $q = \frac{{\cos \theta }}{{1 + \sin \theta }},$ then
If $\tan \theta = \frac{{20}}{{21}},$ cos$\theta$ will be
If $\sec \theta + \tan \theta = p,$ then $\tan \theta $ is equal to