Question

Find the product of the complex numbers. Express your answer in trigonometric form.
z1 = 5(cos(25) + isin(25))
z2 = 2(cos(80) + isin(80))

z1 = 7(cos(105) + isin(105))

z1 = 10(cos(105) + isin(105))

z1 = 3(cos(-55) + isin(-55))

z1 = 10(cos(305) + isin(305))

Answer 1

ah when i was taking trig