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Mathematics 8 Online
OpenStudy (anonymous):

LGBADERIVATIVE: Find the derivative \[\huge f(x)=x^{x^{x}} \]

Parth (parthkohli):

lol! DPAINCDERIVATIVE*

OpenStudy (anonymous):

take the log a couple times

OpenStudy (lgbasallote):

maybe ln it? \[\ln y = x^x \ln x\] side solution: \[\ln a = x \ln x\] \[\frac 1a a' = \ln x + 1\] \[a' = (x\ln x)(\ln x+ 1)\] so back to a while ago \[\ln y = x^x \ln x\] \[\frac 1y y' = \frac{x^x}{x} + \ln x(x\ln x)(\ln x + 1)\] \[\Large y' = x^{x^x}[\frac{x^x}{x} + \ln x(x\ln x)(\ln x + 1)]\]

OpenStudy (helder_edwin):

you have a mistake. according to you own work, you have \[ \ln y=x^x\ \ln x \] and worked on the side \[ a=x^x \Rightarrow \ln a=x\ln x \Rightarrow a'=x^x(1+\ln x) \]

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