Question

tan⁻¹(tan 5π/4), Evaluate it.

Answer 1

Answer:

$\frac{1 }{ \tan } ( \tan(\pi + \frac {\pi} {4} ) ) \\ \frac{1}{ \tan } ( \tan( \frac{\pi}{4} ) ) \\ \frac{1}{ \tan } (1) \\ \frac{1}{ \tan}$