Question 882346
Draw an angle in standard position so that the terminal arm passes through each point. Then write the exact trigonometric ratio's for Sin0, Cos0 and Tan0. 
Points, (-12,-16)
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x = -12 , y = -16
r = sqrt(12^2 + 16^2) = 20
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sin = y/r = -16/20
cos = x/r = -12/20
tan = y/x = 16/12 = 4/3
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csc = r/y = -20/16
sec = -20/12
cot = 3/4
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Cheers,
Stan H.
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