SOH-CAH-TOA inverse

So like I mentioned in the first form of this post there are two ways to use the trigonometric functions Sine, Cosine, and Tangent. The second way is finding angles.

It is similar to the process of finding the side lengths but you need to use the inverse of these trigonometric functions. Each one looks like this:
Sine-1
Cosine-1
Tangent-1
You can only use this if there are two or more side lengths already there.

For example:

Here you have the side lengths for opposite and adjacent (7 and 8). So using the inverse of Tangent since opposite and adjacent are being used this can be solved.

Now instead of putting in an angle since there is none to put you put in the two side lengths you are going to use.

Your equation will look like this: tan-1(7/8)

simple huh?

Your answer should be 41.2 degrees.

 

If more help is needed click on the link below: