Answer
Yes, $\overline{\overline{z}}=z$
Work Step by Step
We are given $z=a+bi$. We solve for $\overline{\overline{z}}$:
$\overline{\overline{z}}=\overline{\overline{a+bi}}=\overline{a-bi}=a+bi=z$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 1 - Section 1.3 - Complex Numbers; Quadratic Equations in the Complex Number System - 1.3 Assess Your Understanding - Page 112: 90
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