Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 8 - Section 8.3 - Polar Form of Complex Numbers; De Moivre's Theorem - 8.3 Exercises - Page 610: 21

Answer

See graph, Quadrant II including axis.

Work Step by Step

See graph, $a\leq0$ covers Quadrants II and III, while $b\geq0$ covers Quadrants I and II, and their overlap would be Quadrant II which is the answer.
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