Math 142, 8.4 Part 2, Evaluate a Power using a Coterminal Angle and DeMoivre’s Theorem

Find a coterminal angle between 0 and 2 Pi for a large radian measure angle. Convert a complex number from Rectangular Form to Trig Form. Use DeMoivre's Theorem to evaluate a power of a complex number in Trig Form. Write your final answer back in Rectangular Form.