Question

Evaluate Tan^-1(1)

Answer 1

??? :(

Answer 2

You can use google for that. tan^-1 is also known as arctan. Type in arctan 1.

Answer 3

Tan^-1(1) = x (your question) is the same as asking tan x = 1.
So ask yourself what angle do I take the tangent of to get 1? You should get pi/4.

Answer 4

btw, you need to know your unit circle for these types of problems.

ty

Answer 5

ok thanks :)