Answer
$\sqrt {115}$
Work Step by Step
From the results of problem #23, we have $\vec u\times\vec v=-9i-5j+3k$, thus the area of the parallelogram formed by the two vectors is
$||\vec u\times\vec v||=\sqrt {81+25+9}=\sqrt {115}$
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 657: 25
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