Answer
$35i+31j$
Work Step by Step
$3\textbf {U}-5\textbf {V}$
$=3(5i+12j)-5(-4i+j)$
$=15i+36j+20i-5j$
$=15i+20i+36j-5j$
$=35i+31j$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapters 1-8 - Cumulative Test - Page 477: 20
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