SOLUTION: tan theta= 2/9 and theta is in the third quadrant, find sin theta

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Question 859205: tan theta= 2/9 and theta is in the third quadrant, find sin theta
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
tan theta= 2/9 and theta is in the third quadrant, find sin theta
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tan(t) = y/x
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In QIII y = -2 ; x = -9
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r = sqrt[4+81] = sqrt(85)
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sin(t) = y/r = -2/sqrt(85)
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Cheers,
Stan H.
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