Inverse Trigonometric Functions

Inverse Trigonometric Functions

Trigonometric Functions

You've studied how the trigonometric

functions sin(x), cos(x), and tan(x) can be used to find an unknown side length of a right triangle, if one side length and an angle measure are known.

Inverse Trigonometric Functions

The inverse trigonometric functions

 sin⁻¹(x), cos⁻¹(x) , and tan⁻¹(x) ,

are used to find the unknown measure of an angle of a right triangle when two side lengths are known.

How do you find the angle measurement for Θ ?

How do you find the angle measurement for ∠x ?

How do you find the angle measurement for x and y ?

How do you find the angle measurement for a and b ?