# How do I solve #cos x= (sqrt 2/2)# for #-2pi <=x<=2pi#?

##### 1 Answer

May 6, 2018

#### Explanation:

Trig table and unit circle give 2 solutions:

In the interval

In the interval

May 6, 2018

Trig table and unit circle give 2 solutions:

In the interval

In the interval