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chrislb22
Group Title
Calculate the derivative of the function.
Use Chain Rule
g(z) = (z^2/7+z)^2
 2 years ago
 2 years ago
chrislb22 Group Title
Calculate the derivative of the function. Use Chain Rule g(z) = (z^2/7+z)^2
 2 years ago
 2 years ago

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baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
Can you set it up?
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
im guessing its 2(z^2) x 2(7)
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
dw:1351750568965:dwIs this the function?
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
@baldymcgee6 yes, and @sirm3d no the Z is squared
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
sorry i mistyped
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
yea i just have a hard time with this one. maybe because its a different format
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
the first part is differentiating the square
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
\[2\left( \frac{ z^{2} }{ 7+z } \right)\]
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
There is an easier method if you want..
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
dw:1351750799134:dwJust use the power rule and chain rule throughout, no need for quotient rule.
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
the second part is where the chain rule is used. Get the derivative of \[\frac{ z^{2} }{ 7+z }\] by the quotient rule for differentiation
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
dw:1351750960037:dw
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
You will actually need the product rule because the coefficient is a variable.
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
@sirm3d so the derivative would be 2x/7 ?and @baldymcgee6 so the previous equation you typed is the product rule? or chain?
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
nope. the quotient rule on \[\frac{ z^{2} }{ 7+z }\] will produce \[\frac{ \left( 7+z \right)\left( 2z \right)\left( z^{2}\left( 1 \right) \right) }{ \left( 7+z \right)^{2} }\]
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
dw:1351751195729:dw
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
@baldymcgee6 quick question. where did u get (1) in the very first step in the equation
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
dw:1351751807412:dw
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
dw:1351751909040:dw
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
also the second step the last part of the equation is cut off 2(7+z....
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
sorry, my drawings keep getting cut off for some reason. 2(7+z)^3 Just using power rule there.
 2 years ago

chrislb22 Group TitleBest ResponseYou've already chosen the best response.0
awesome, thanks a lot
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
Welcome =D
 2 years ago
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