#### Answer

$\cot 3^{0}$

#### Work Step by Step

$\tan 87^{0}=\cot \left( 90^{0}-87^{0}\right) =\cot 3^{0}$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$\cot 3^{0}$

$\tan 87^{0}=\cot \left( 90^{0}-87^{0}\right) =\cot 3^{0}$

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