SOLUTION: if cot /theta =3, /theta in Q III, find sin /theta and cos /theta

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Question 1090764: if cot /theta =3, /theta in Q III, find sin /theta and cos /theta
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
if cot /theta =3, /theta in Q III, find sin /theta and cos /theta
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cot = x/y = -3/-1
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r = sqrt(x^2 + y^2) = sqrt(10)
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sin = y/r = -1/sqrt(10) = -sqrt(10)/10
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cos = x/r
etc