Provide an Appropriate Response $$\text { Show that } \csc ( A + B ) = \frac { \csc A \csc B } { \cot B + \cot A } \text {. }$$

Provide an appropriate response.
- $$\text { Show that } \csc ( A + B ) = \frac { \csc A \csc B } { \cot B + \cot A } \text {. }$$