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Let Z, =4 Cos + i sin 5 and Z, = 8 cos - + i sin 5 8 8 Find the following. Write your

Let Z, =4 Cos + i sin 5 and Z, = 8 cos - + i sin 5 8 8 Find the following. Write your answers in trigonometric form. Give exact values in your answers (not decimal approximations). (a) z z, = (cos + i sin (D) JI X 5 (b) - = COS + i sin (D))

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