Use a Double-Angle Formula or a Half-Angle Formula to Simplify $\frac { 2 \tan 32 } { 1 - \tan ^ { 2 } 32 }$

Essay

Use a double-angle formula or a half-angle formula to simplify $\frac { 2 \tan 32 } { 1 - \tan ^ { 2 } 32 }$ .