#### Answer

I Quadrant

#### Work Step by Step

$\cos\theta$ is positive in I and IV quadrants.
$\tan\theta$ is positive in I and III quadrants.
Both are positive in I quadrant only.
$\cos\theta \gt 0$, $\tan\theta \gt 0$ lies in I quadrant only.

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Published by
Pearson

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

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

I Quadrant

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