# How do you find the exact values of #cos^-1 0#?

##### 2 Answers

May 18, 2018

Set

Hence

For

The general solutions are

May 19, 2018

#### Explanation:

It's important to recognize in general the inverse trig functions are multivalued, and that while a particular solution is a necessary step in finding the general solution, it is not in itself the general solution.

The general solution to

is

or

Here we have

A particular solution is

Applying our recipe, the general solution is