Answered: 7. a) 3[cos (800) + iSin (800)] X…

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7. a) 3[cos (800) + iSin (800)] X 4[cos (700) + iSin (700)] b) 10[cos (3500) + iSin (3500)] / 5 [cos (500) + iSin (500)

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section6.4: Values Of The Trigonometric Functions

Problem 21E

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Question

7. a) 3[cos (80⁰) + iSin (80⁰)] X 4[cos (70⁰) + iSin (70⁰)]

b) 10[cos (350⁰) + iSin (350⁰)] / 5 [cos (50⁰) + iSin (50⁰)

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