#### Answer

$-\dfrac {4}{9}$

#### Work Step by Step

$csc\theta =\dfrac {1}{\sin \theta }=-\dfrac {9}{4}\Rightarrow \sin \theta =\dfrac {1}{-\dfrac {9}{4}}=-\dfrac {4}{9}$

Published by
Pearson

ISBN 10:
013421742X

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

$-\dfrac {4}{9}$

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