We learned a method for multiplying two complex numbers written in polar form. But, you learned how to multiply complex numbers in rectangular form back in Pre Calc. Below, I will do an example showing how you get the same answer either way. Your task is to make up your own example and do the work showing that YOU get the same answer. Make sure to show all your steps!
We learned a method for multiplying two complex numbers written in polar form. But, you learned how to multiply complex numbers in rectangular form back in Pre Calc. Below, I will do an example showing how you get the same answer either way. Your task is to make up your own example and do the work showing that YOU get the same answer. Make sure to show all your steps!
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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Question
Make up your own example and do the work showing YOU get the same answer. Make sure to show all your steps!

Transcribed Image Text:We learned a method for multiplying two complex numbers written in polar form. But, you learned how to multiply complex numbers in rectangular
form back in Pre Calc. Below, I will do an example showing how you get the same answer either way. Your task is to make up your own example and
do the work showing that YOU get the same answer. Make sure to show all your steps!
My example: Multiply
(3+ 41) (-2 + 5i)
"Old Way": -- 6 - 81 + 151 + 20i2
- - 26 + 71
(Here, I am simply foiling)
"New Way": (3 + 41) is in rectangular form.
Changing to polar form: 5 ( cos 53.13 degrees +i sin 53.13 degrees)
(-2 + 51) is SqRt 29( cos 111.8 degrees + i sin 111.8 degrees)
Multiplying these two in polar form gives us 5 SqRt 29 ( cos 164.93 degrees +i sin 164.93 degrees) - -26 + 71 !!
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