SOLUTION: Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5). Find the exact values for the trig functions, sin a, cos a, tan a

Question 455173: Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5). Find the exact values for the trig functions, sin a, cos a, tan a
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Assume that (a) is an angle in standard position whose terminal side contains the point (-12, -5).
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y = -5 ; x = -12 means angle "a" is in the 3rd quadrant.
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r = sqrt[5^2+12^2] = sqrt[169] = 13
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Find the exact values for the trig functions,
sin a = y/r = -5/13
cos a = x/r = -12/13
tan a = y/x = 5/12
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Cheers,
Stan H.

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