[SOLVED] inverse of angles

Hey everyone,

I have a test tomorrow and having some difficulty with inverses. so if anyone can help, I'd really appreciate it. Also, I am a visual learner so if it is shown I understand a lot more and can able to apply the same principles I have seen to other problems.

So can someone show me how to do these:

1) Find the inverse function for

Answer: https://webwork.uncc.edu/webwork2_fi...7821413471.png

2) Evaluate each of the inverse trig functions in radians rounded to 4 decimal places

https://webwork.uncc.edu/webwork2_fi...0522a264c1.png https://webwork.uncc.edu/webwork2_fi...ddf16c4091.png