$\text{A.}$ $\frac{\tan 48^{\circ}+\tan 72^{\circ}}{\tan 48^{\circ} \tan 72^{\circ}}=\sqrt{3}$
$\text{B.}$ $\cos 82^{\circ} \sin 52^{\circ}+\sin 82^{\circ} \cos 128^{\circ}=-\frac{1}{2}$
$\text{C.}$ $\sin ^2 1^{\circ}+\sin ^2 2^{\circ}+\sin ^2 3^{\circ}+\mathrm{L}+\sin ^2 89^{\circ}=\frac{89}{2}$
$\text{D.}$ $\frac{1}{\sin 10^{\circ}}-\frac{\sqrt{3}}{\cos 10^{\circ}}=4$
$\text{E.}$
$\text{F.}$