Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Question
d) Determine the three cubmroots of the complex number (-10 + j6)5 in both polar and Cartesian forms and show the roots on an Argand diagram. e) By equating the real parts of show that cos 50+ jsin 50 = (cose + j sin 8 )5 cos 50 = 16cos50-20cos³0+5 cos 0. Also express sin 50 as powers of sin 8
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Transcribed Image Text:d) Determine the three cubmroots of the complex number (-10 + j6)5 in both polar and Cartesian forms and show the roots on an Argand diagram. e) By equating the real parts of show that cos 50+ jsin 50 = (cose + j sin 8 )5 cos 50 = 16cos50-20cos³0+5 cos 0. Also express sin 50 as powers of sin 8
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Step 1: Introduction
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Step 2: Cube roots of complex number
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Step 3: Argand diagram
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Step 4: Part (e)
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Solution
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