Write cos(i – 4) in the form of a + bi.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Complex Numbers
Section4.4: Trigonometric Form Of A Complex Number
Problem 3ECP: Write z=2cos150+isin150 in standard form a+bi
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Write cos(i – 4) in the form of a + bi.
Transcribed Image Text:Write cos(i – 4) in the form of a + bi.
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