# Math Help - Evaluating Inverses of the Trigonometric Functions?

1. ## Evaluating Inverses of the Trigonometric Functions?

tan(tan^-1 6/11) how exactly do i evaluate this? I've got no idea how I'm supposed to start with this or anything? Or what about the same thing with sine instead of tan?

2. ## Re: Evaluating Inverses of the Trigonometric Functions?

The tangent and inverse tangent functions are inverses, which means they "cancel each other out".