# How do you find the exact value of #cos62# using the sum and difference, double angle or half angle formulas?

##### 1 Answer

#### Explanation:

*Best way to start is to convert the angle measure from degrees to radians. A quick refresher on how to do this;*

Radians = Degrees

Radians =

*The trigonometric identity that we are going to use is the angle sum identity for cosine;*

*Entering in the appropriate angles;*

*Evaluating the trigonometric ratios yields;*

*Hence,*

I hope that is helpful,

If you like I have a youtube channel with heaps of videos on problems like this, you should check it out:

https://www.youtube.com/haroldwalden

:)