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On the first example problem for session 32 (http://ocw.mit.edu/courses/mathematics/1802scmultivariablecalculusfall2010/partbchainrulegradientanddirectionalderivatives/session32totaldifferentialsandthechainrule/MIT18_02SC_we_15_comb.pdf) why is the partial derivative of w with respect to x only 3x^2+y? Shouldn't the y and z coefficients remain for the 3x^2?
 one year ago
 one year ago
On the first example problem for session 32 (http://ocw.mit.edu/courses/mathematics/1802scmultivariablecalculusfall2010/partbchainrulegradientanddirectionalderivatives/session32totaldifferentialsandthechainrule/MIT18_02SC_we_15_comb.pdf) why is the partial derivative of w with respect to x only 3x^2+y? Shouldn't the y and z coefficients remain for the 3x^2?
 one year ago
 one year ago

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poojatBest ResponseYou've already chosen the best response.0
you are right..looks like a typo
 one year ago

senecajimBest ResponseYou've already chosen the best response.0
Definitely an error, not a typo. And the error is propagated throughout the rest of the solution, giving the wrong answer to the problem.
 one year ago

AvvaBest ResponseYou've already chosen the best response.0
Page not found Sorry, the page you requested was not found. :(
 one year ago

senecajimBest ResponseYou've already chosen the best response.0
Avva  Remove the "close paren" from the end of the URL. Then it loads.
 one year ago

AvvaBest ResponseYou've already chosen the best response.0
it is written 3x^2 yz + y so it is right the error is that dw/dy = x^3 z+ y while it has to be x^3 z+ x
 one year ago

AvvaBest ResponseYou've already chosen the best response.0
@senecajim ThnX for the hint dun know how I missed it :/
 one year ago
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