#### Answer

$$\cot t\tan t=1$$

#### Work Step by Step

$$A=\cot t\tan t$$
From a Reciprocal Identity:
$$\cot t=\frac{1}{\tan t}$$
which equals $$\cot t\tan t=1$$
In other words, $$A=1$$

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Published by
Pearson

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

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

$$\cot t\tan t=1$$

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