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Find the Exact Value of the Expression Using the Provided sinθ\sin \theta

Question 123

Multiple Choice

Find the exact value of the expression using the provided information.
-Find sinθ\sin \theta if secθ=85\sec \theta = - \frac { 8 } { 5 } and tanθ<0\tan \theta < 0 .


A) 398- \frac { \sqrt { 39 } } { 8 }
B) 398\frac { \sqrt { 39 } } { 8 }
C) 58- \frac { 5 } { 8 }
D) 3964\frac { 39 } { 64 }

Correct Answer:

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