I have a precalculus test coming up and I'm not really understanding how to do everything. Please help.
1. Find the angle betweem 0 and 2pi which is coterminal to the angle -(7pi)/5. Now convert the angle you just found to degrees.
A = -7pi/5rad * 180o/pi = -2520
-252o + 360 = 108o = Co-terminal angle.