SOLUTION: Sinx/cosx-cosx/sinx

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Question 1000085: Sinx/cosx-cosx/sinx
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
Sinx/cosx-cosx/sinx
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= tan(x) - cot(x)
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= (sin^2 - cos^2)/(sin*cos)
= -cos(2x)/(sin(2x)/2)
= -2cot(2x)