Question #2211e

1 Answer
Dec 12, 2017

To find theta, you need to find the inverse of each function.

Explanation:

Since all of these are in Quadrant 1, they will be positive.

I'll do the first one for you,

cscθ=2

θ=csc1(2) change csc1 to sin1 and use reciprocal of 2

  • simply because there isn't a button on a calculator for csc1

θ=sin1(12)

θ=30

For radians, use the formula nπ180

30π180=π6

Now do the same thing for cosθ=22 and tanθ=1. These are easier, as you don't to worry about changing the function.