#### Answer

$x=arccos\frac{y}{5}$

#### Work Step by Step

$y=5cosx$
Need to solve $x$ in order to find this divide the above equation by 5 both sides.
$cosx=\frac{y}{5}$
Apply definition of arccosine.
$x=arccos\frac{y}{5}$

Published by
Pearson

ISBN 10:
978-0-13-421743-7

ISBN 13:
978-0-13421-743-7

$x=arccos\frac{y}{5}$

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