$\int$ $\frac { \cos 2 x } { \sin ^ { 3 } 2 x }$

Short Answer

$\int$ $\frac { \cos 2 x } { \sin ^ { 3 } 2 x }$ dx
Enter your answer with any coefficients in front as integers or reduced fractions of form $\frac { a } { b }$ . No parentheses around arguments of functions.