$\int$ $\frac { e ^ { x } - e ^ { - x } } { e ^ { x } + e ^ { - x } }$

Short Answer

$\int$ $\frac { e ^ { x } - e ^ { - x } } { e ^ { x } + e ^ { - x } }$ dx
Enter your answer with any coefficients in front as integers or reduced fractions of form a/b.