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7. Find the product of the following complex numbers. Leave answer in polar form. z1 = 5(cos 20° + i sin 20°) z2 = 4(cos 10° +i sin 10°) %3D O A. 20(cos 200° + i sin 200°) B. 9(cos 30° + i sin 30°) O C. 20(cos 30 +i sin 30°) O D. 9(- cos 200° -i sin 200°)

7. Find the product of the following complex numbers. Leave answer in polar form. z1 = 5(cos 20° + i sin 20°) z2 = 4(cos 10° +i sin 10°) %3D O A. 20(cos 200° + i sin 200°) B. 9(cos 30° + i sin 30°) O C. 20(cos 30 +i sin 30°) O D. 9(- cos 200° -i sin 200°)

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Select the best answer for the question. 7. Find the product of the following complex numbers. Leave answer in polar form. z1 = 5(cos 20° + i sin 20°) z2 = 4(cos 10° + i sin 10°) %3! A. 20(cos 200° + i sin 200°) B. 9(cos 30° + i sin 30°) O C. 20(cos 30° +i sin 30°) O D. 9(- cos 200° - i sin 200°)
Transcribed Image Text:Select the best answer for the question. 7. Find the product of the following complex numbers. Leave answer in polar form. z1 = 5(cos 20° + i sin 20°) z2 = 4(cos 10° + i sin 10°) %3! A. 20(cos 200° + i sin 200°) B. 9(cos 30° + i sin 30°) O C. 20(cos 30° +i sin 30°) O D. 9(- cos 200° - i sin 200°)
Expert Solution
Step 1

Given,

z1 = 5cos20°+isin20°

z2 =4cos10°+isin10°  

We have to find the product of the above two complex number. 

 

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