Question 908753: The sin (angle)=15/17. Determine the exact value of the other two ratios,if angle is in II quadrant
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The sin (angle)=15/17. Determine the exact value of the other two ratios,if angle is in II quadrant
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Note: x is negative in QII
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By definition, sin = y/r
Since sin = 15/17, y = 15 and r = 17
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Then x = -sqrt[17^2-15^2] = -sqrt(64) = -8
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Ans:
sin = y/r = 15/17
cos = x/r = -8/17
tan = y/x = -15/8
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Cheers,
Stan H.
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