Shay1213
Shay1213
02-03-2017
Mathematics
contestada
What is the derivative?
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LammettHash
LammettHash
02-03-2017
[tex]y=\dfrac{8x^4}{\ln x}[/tex]
By the quotient rule, the derivative is
[tex]\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\ln x\dfrac{\mathrm d}{\mathrm dx}[8x^4]-8x^4\dfrac{\mathrm d}{\mathrm dx}[\ln x]}{(\ln x)^2}[/tex]
[tex]y'=\dfrac{48x^3\ln x-\dfrac{8x^4}x}{\ln^2x}[/tex]
[tex]y'=\dfrac{48x^3\ln x-8x^3}{\ln^2x}[/tex]
[tex]y'=\dfrac{8x^3(6\ln x-1)}{\ln^2x}[/tex]
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