Question

What is the exact value of `tan 45`?

Answer 1

`tan(45 ^circ) = 1`

Explanation:

A 45-45-90 triangle has legs of identical length and a hypotenuse of `sqrt2` times that.

By SOHCAHTOA, tangent is opposite over adjacent, which are the two legs. Since they have the same length, `tan(45 ^circ) = 1`