Answer
$6(cos(107^\circ)+i\ sin(107^\circ))$
Work Step by Step
Use the given complex numbers, we have
$z\cdot w=(2)(3)(cos(85^\circ+22^\circ)+i\ sin(85^\circ+22^\circ))=6(cos(107^\circ)+i\ sin(107^\circ))$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 8 - Polar Coordinates; Vectors - Chapter Test - Page 656: 10
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