inverses.

Chapter 8 had many sections that i found a little challenging. They were indeed doable of course but required a little extra attention. One of the more easier tasks of chapter eight was finding the inverse. These kind of problems were kind of fun too:)

Chapter *8 Finding the inverse

Ex.
3Cosx=1
reminders: calculator must be in the degree mode. Not the radian mode.

1.You have to get the equation by itself.
first divide “cosx’ by 3.
- 3cosx/3 = 1/3

2.You have to solve for x. x =the inverse of cosine.
X=Cos^-1(1/3)

3.You calculate (enter into your calculator) the inverse of cosine of (1/3).
Your answer should be 70.528 degrees. Round to the nearest tenth of a degree if not stated.
X=70.5°