#### Answer

$\cos y$

#### Work Step by Step

Using the trigonometric rules;
$y=\cos^{-1} x$
$\cos y=x$
$x=\cos y$
Therefore, the missing term in the statement is $\cos y$.

Published by
Pearson

ISBN 10:
0321671775

ISBN 13:
978-0-32167-177-6

$\cos y$

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