Question 630569: Let (-5,-7) be a point on the terminal side of theta.
Find the exact values of cos theta, csc theta, tan theta
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Let (-5,-7) be a point on the terminal side of theta.
Find the exact values of cos theta, csc theta, tan theta
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In 3rd Quadrant you have x = -5, y = -7:
Then r = sqrt(5^2+7^2) = sqrt(60) = 2sqrt(15)
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sin = y/r = -7/(2sqrt(15))
cos = x/r = -5/(2sqrt(15))
tan = -7/-5 = 7/5
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csc, sec, and ctn are the inverse.
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Cheers,
Stan H.
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