#### Answer

$0.837981220036$

#### Work Step by Step

Make sure that the setting for angles is "radians".
Keys:
"shift" or "2nd function"
"tan"
numerical keypad: (1.1111111)
"="
yields
$0.837981220036$

Published by
Pearson

ISBN 10:
013421742X

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

$0.837981220036$

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