Answer
$12+2i$
Work Step by Step
Step 1: $(7-4i)-[(-2+i)-(3+7i)]$
Step 2: $(7-4i)-[-2+i-3-7i]$
Step 3: $(7-4i)-[-5-6i]$
Step 4: $7-4i+5+6i$
Step 5: $12+2i$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 8 - Section 8.1 - Complex Numbers - 8.1 Problem Set - Page 426: 45
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