Answer
The sum of is $3$.
See Graph I, the resultant $3$ is in RED.
Work Step by Step
The sum of $7 - 3i$ and $-4 + 3i$ is $3$.
Refer to Graph I, the complex number, $7 - 3i$ and $-4 + 3i$ are in BLUE, while the resultant $3$ is in RED.
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.2 Trigonometric (Polar) Form of Complex Numbers - 8.2 Exercises - Page 370: 20
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