SOLUTION: 1. Find tan s if sin s = ¾ and s is in quadrant II
2. Find cos s if csc s = - 3/5 and s is in quadrant IV
3. +__ = csc2x
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Question 899246: 1. Find tan s if sin s = ¾ and s is in quadrant II
2. Find cos s if csc s = - 3/5 and s is in quadrant IV
3. +__ = csc2x
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1. Find tan s if sin s = ¾ and s is in quadrant II
Note: tan = x/y is negative in QII
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If sin = 3/4, y = 3 and r = 4
Then x = -sqrt[4^2-3^2] = -sqrt(7)
Ans: tan = -sqrt(7)/4
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2. Find cos s if csc s = - 3/5 and s is in quadrant IV
Note: csc(s) cannot equal -3/5; it must be <=-1 or >=1
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Cheers,
Stan H.
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