#### Answer

$$\tan^{2}x$$

#### Work Step by Step

Pythagorean Identity:
$$\sec^{2}x-1=\tan^{2}x$$

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Published by
Pearson

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

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

$$\tan^{2}x$$

Pythagorean Identity:
$$\sec^{2}x-1=\tan^{2}x$$

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