SOLUTION: Sec (theta symbol)= -7/5, find sin (theta symbol)

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Question 1110111: Sec (theta symbol)= -7/5, find sin (theta symbol)
Answer by Alan3354(69443) About Me  (Show Source):
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Sec (theta symbol)= -7/5, find sin (theta symbol)
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sec(t) = -7/5
find sin(t)
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sec = 1/cos
cos(t) = -5/7
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sin = sqrt(1 - cos^2) = sqrt(24/49) = 2sqrt(6)/7
sin%28t%29+=++2sqrt%286%29%2F7 or
sin%28t%29+=++-2sqrt%286%29%2F7
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sec & cos negative can be Q2 or Q3
sine is + in Q2 and negative in Q3 --> cannot be determined