Explanation Given: Complex number is − 2 i . Calculation: To find the trigonometric form r ( cos θ + i sin θ ) . Sketch the graph of − 2 i in the complex plane. Here, x = 0 and y = − 2 . Now, to find r : r = x 2 + y 2 = ( 0 ) 2 + ( − 2 ) 2 =

11th Edition

ISBN: 9780134217437

Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher: PEARSON

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Chapter 8.2, Problem 52E

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To calculate: The complex number −2i in trigonometric form, r(cosθ+isinθ).

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Chapter 8.2, Problem 51E

Chapter 8.2, Problem 53E

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Chapter 8 Solutions

Trigonometry (11th Edition)

Ch. 8.1 - CONCEPT PREVIEW Fill in the blank(s) to correctly...Ch. 8.1 - CONCEPT PREVIEW Fill in the blank(s) to correctly...Ch. 8.1 - CONCEPT PREVIEW Fill in the blank(s) to...Ch. 8.1 - CONCEPT PREVIEW Fill in the blank(s) to correctly...Ch. 8.1 - Prob. 5E Ch. 8.1 - Prob. 6E Ch. 8.1 - Prob. 7E Ch. 8.1 - Prob. 8E Ch. 8.1 - Prob. 9E Ch. 8.1 - Prob. 10E

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The complex number − 2 i in trigonometric form, r ( cos θ + i sin θ ) .

Solution Summary: The author explains how to calculate the complex number -2i in trigonometric form.

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To calculate: The complex number −2i in trigonometric form, r(cosθ+isinθ).

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Chapter 8 Solutions