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Question Number 37861 by Rio Mike last updated on 18/Jun/18
   which is the chain rule?  A. (dy/dx) = (dy/dx) × 1  B. (dy/dx) = (du/dx) × (dy/dx)  C. (dy/dx) = (dy/du) × (du/dx)  D. (dy/dx) = (dy/du) × (dy/dx)
$$\:\:\:{which}\:{is}\:{the}\:{chain}\:{rule}? \\ $$$${A}.\:\frac{{dy}}{{dx}}\:=\:\frac{{dy}}{{dx}}\:×\:\mathrm{1} \\ $$$${B}.\:\frac{{dy}}{{dx}}\:=\:\frac{{du}}{{dx}}\:×\:\frac{{dy}}{{dx}} \\ $$$${C}.\:\frac{{dy}}{{dx}}\:=\:\frac{{dy}}{{du}}\:×\:\frac{{du}}{{dx}} \\ $$$${D}.\:\frac{{dy}}{{dx}}\:=\:\frac{{dy}}{{du}}\:×\:\frac{{dy}}{{dx}} \\ $$
Commented by ajfour last updated on 18/Jun/18
C .
$${C}\:. \\ $$

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