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anonymous
 one year ago
Please help me
I give medals
anonymous
 one year ago
Please help me I give medals

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@LynFran could you help me?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I already got the derivative, but I don't know how to get the answers

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439517537638:dw

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0\[x ^{4}=\ln(xy)\] \[4x ^{3}=\frac{ 1 }{ xy }*\frac{ d }{ dx }(xy)\]\[4x ^{3}=\frac{ 1 }{ xy }*(1)(y)+(x)(1\frac{ dy }{ dx })\]\[4x ^{3}=\frac{ 1 }{ xy }*y+x \frac{ dy }{ dx }\]\[4x ^{3}=\frac{ y+x \frac{ dy }{ dx } }{ xy }\]\[4x ^{3}*xy=y+x \frac{ dy }{ dx }\]\[4x ^{3}*xyy=x \frac{ dy }{ dx }\]\[(4x ^{4}yy)/x=\frac{ dy }{ dx }\]... not sure..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but you don't have xy, you should have x+y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I did it like 5 times an Im sure I did it correctly you don't have to show me all the work, I know how to get to the answer, I just can find how that point value

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0i think i was over thinking it.. \[x ^{4}=\ln(xy)\]\[x ^{4}=lnx+lny\]\[4x ^{3}=\frac{ 1 }{ x }+\frac{ 1 }{ y }\frac{ dy }{ dx }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think you have to do the chain rule, first do the derivative of Ln and then from the inside

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439518761802:dw

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0\[4x ^{3}=\frac{ x+y }{x y }\frac{ dy }{ dx }\]\[4x ^{3}(\frac{ xy }{ x+y })=\frac{ dy }{ dx }\]

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0yes i did the chain rule..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, so can we plug the values from this point?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439518990005:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that's what I got, I think that's wrong to be honest because if you did the chin rule, you should have found the derivative of the inside, which would be 1+y'

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0yep so;\[4(1)^{3}(\frac{ (1)(e) }{ 1+e })=\frac{ dy }{ dx }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but my choices are 3e e^4 4 1

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0\[4x ^{3}\frac{ 1 }{ x }=\frac{ 1 }{ y }\frac{ dy }{ dx }\]\[\frac{ 4x ^{4}1 }{ x }=\frac{ 1 }{ y }\frac{ dy }{ dx }\]\[(y)(\frac{ 4x ^{4}1 }{ x })=\frac{ dy }{ dx }\]\[(e)(4(1)^{4}1)=\frac{ dy }{ dx }\]...idk

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439519779528:dw

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0\[4x ^{3}=\frac{ x \frac{ dy }{ dx } }{ xy }+y\]\[4x ^{3}=\frac{ \frac{ dy }{ dx } }{ y }+y\]\[4x ^{3}=\frac{ \frac{ dy }{ dx } +y ^{2}}{ y }\]\[4x ^{3}yy ^{2}=\frac{ dy }{ dx }\]\[y(4x ^{3}y)=\frac{ dy }{ dx}\]... \[4ee ^{2}=\frac{ dy }{ dx }\]lol getting.. 3.484

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0\[4=\frac{ 1 }{ e }\frac{ dy }{ dx }+e\]\[(4e)=\frac{ 1 }{ e }\frac{ dy }{ dx }\]\[e(4e)=\frac{ dy }{ dx }\]

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0im gonna settle for the 4...lol this one....
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