Answer
$\sqrt{-1}$;
$-1$
Work Step by Step
RECALL:
(1) $i = \sqrt{-1}$
(2) $i^2=-1$
Thus, the missing expressions in the given statement are $\sqrt{-1}$ and $-1$, respectively.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 2 - Section 2.1 - Complex Numbers - Concept and Vocabulary Check - Page 314: 1
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