Question 834849
find the value of sin(a-b) if cos(a) = 15/17, cot(a) = 24/7, 0 degrees < b < 90 
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angle "a" is in QI where x and y are positive.
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Since cos = x/r, x = 15 and r = 17
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Therefore: y = sqrt[17^2-15^2] = 8
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Question:: What else do we know about "b"?
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Cheers,
Stan H.
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