$\operatorname{cosec}\left(105^{\circ}\right)$ এর মান কত ?

$\frac{4}{\sqrt{6}-\sqrt{2}}$

$\frac{\sqrt{6}-\sqrt{2}}{4}$

$\frac{4}{\sqrt{6}+\sqrt{2}}$

$\frac{\sqrt{6}+\sqrt{2}}{4}$