Prove $\frac { \sin ( x + y ) } { \sin x \sin y } = \cot x + \cot y$

Q94: Solve the given equation. <span

Q95: Use a double-angle formula or a

Q96: Solve the given equation. <span

Q97: Find <span class="ql-formula" data-value="\sin 2

Q98: Solve the given equation. <span

Q100: Solve the given equation. <span

Q101: Use a double-angle formula or a

Q102: Solve the given equation. <span

Q103: Show that the equation <span

Q104: Find all solutions of the given