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Mathematics 14 Online
OpenStudy (anonymous):

Can someone help me find the derivative of this function

OpenStudy (anonymous):

\[\frac{ cosx }{ cosx-sinx }\]

OpenStudy (cwrw238):

use the quotient rule

OpenStudy (anonymous):

I used that. but I don't get the same answer as my book

OpenStudy (anonymous):

What did your book say?

OpenStudy (anonymous):

\[\frac{ 1 }{ (cosx-sinx)^2 }\]

OpenStudy (anonymous):

Ok so the bottom accounts for q^2, so lets just take half of the quotient rule and simplify:|dw:1370806021794:dw|

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