Answer
$f_{xzy} = 6yz^2$
Work Step by Step
Since $f_{xzy} = f_{yzx}$,
then $f_{y} = 2xyz^{3}$, $f_{yz} = 6yxz^2$, $f_{yzx} = 6yz^2$
Therefore, $f_{xzy} = 6yz^2$
Calculus: Early Transcendentals 9th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1337613924
ISBN 13:
978-1-33761-392-7
Chapter 14 - Section 14.3 - Partial Derivatives - 14.3 Exercise - Page 970: 67
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