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Mathematics 22 Online
OpenStudy (anonymous):

Please help! Find the derivative!

OpenStudy (anonymous):

\[y=(1+\frac{ 2 }{ x })^{2x}\]

zepdrix (zepdrix):

Hmm so we have a variable in the exponent, which means we won't be able to use the power rule. We'll need to use logarithmic differentiation, are you familiar with that? :)

OpenStudy (anonymous):

I don't completely understand it, but i have seen it done!

zepdrix (zepdrix):

|dw:1352066292391:dw| The reason we did this, is because of one of our rules of logarithms will allow us to get that variable OUT of the exponent spot! \[\huge \log(a^b)=b*\log(a)\] Do you see how we'll be able to use this rule? :D

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