#### Answer

False.

#### Work Step by Step

Please note that the only function whose graph is the same as its inverse is $y=x$. So the graph of the functions $y=\sec \frac{x}{2} = \frac{1}{\cos \frac{x}{2}}$ and $\cos \frac{x}{2}$ are not the same.

Published by
Pearson

ISBN 10:
0-13446-914-3

ISBN 13:
978-0-13446-914-0

False.

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