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What is the derivative of f(x)=cosx/sinx

 Nov 24, 2018
 #1
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f(x)   = cos x / sinx   =  cot x

 

The derivative of  cot x   =  -csc^2 x

 

 

cool cool cool

 Nov 24, 2018
 #2
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It was a question from a practice test I'm doing. The answer says it's f(x)=(cos^2x/sin^2x) -1

 Nov 24, 2018

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