Answer
Conjugate: $12+5i$
Modulus: $13$
Work Step by Step
Conjugate: $12-5i=12+5i$
Modulus: $|z|=\sqrt(12^2+5^2)=\sqrt(169)=13$
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
APPENDIX H - Complex Numbers - H Exercises - Page A 64: 15
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