Answer
$E = 50+98i$
Work Step by Step
For $E = IZ$, where $I = 10+6i$ and $Z = 8+5i$,
$E = (10+6i)(8+5i)$
$= 80+50i+48i+30i^2$
$= 80+98i-30$ $(i^2=-1)$
$= 50+98i$
$E = 50+98i$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.1 Complex Numbers - 8.1 Exercises - Page 358: 112
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