We learned chapter 8 last week and at some parts i was confused but for the most part i got it. We learned how to solve for theta and for x.

To solve for theta you have to get the trig function by itself and then take an inverse. An inverse has two answers with some exceptions, then you find where the angle is based on the trig function and if the number is positive or negative.

Steps:
Take the inverse of the positive number to find the quadrant one angle. To get to the quadrant two angle you have to make negative then add 180 degrees then you add 180 again to get to quadrant three. To get to quadrant four you have to make negative and add 360.

Ex. Tan theta=1.2
Plug that into calculater and you 50.2
Then you add 180 and you get 230.2

8-1 was pretty understand and just involved remembering your formula and knowing how to plug it into your calculator