1. The problem statement, all variables and given/known data Cot^-1(-sqrt(3)) and CSC(arccos(3/5) 2. Relevant equations 3. The attempt at a solution I know this looks like a trig problem, but I'm in calc, just wasn't sure where to put this. I have the solution to both problems, my biggest issue here is that I do not know of or remember how to get the radian measure from the point measure and vice versa. Any methods to figuring this out (thats not trial and error) would be helpful. I don't have a problem with the sin and cos functions because the graphs are so simple, bit its mostly the inverse functions with their crazy graphs that throw me off.