Answer
$- \dfrac{5}{4}$
Work Step by Step
$\sin{2t} = - \dfrac{4}{5}$
$\csc{2t} = \dfrac{1}{\sin{2t}} = - \dfrac{5}{4}$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 5 - Section 5.3 - Double-Angle Formulas - 5.3 Problem Set - Page 296: 22
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