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Question Number 114166 by mohammad17 last updated on 17/Sep/20

if u=5x^2 +1 , y=u^3  then (dy/dx)=?  (1) (dy/du).(du/dx)     (2)(dy/du)/(du/dx)    chose (1) or (2)

$${if}\:{u}=\mathrm{5}{x}^{\mathrm{2}} +\mathrm{1}\:,\:{y}={u}^{\mathrm{3}} \:{then}\:\frac{{dy}}{{dx}}=? \\ $$$$\left(\mathrm{1}\right)\:\frac{{dy}}{{du}}.\frac{{du}}{{dx}}\:\:\:\:\:\left(\mathrm{2}\right)\frac{{dy}}{{du}}/\frac{{du}}{{dx}} \\ $$$$ \\ $$$${chose}\:\left(\mathrm{1}\right)\:{or}\:\left(\mathrm{2}\right) \\ $$

Commented by bobhans last updated on 17/Sep/20

(1)

$$\left(\mathrm{1}\right) \\ $$

Commented by mohammad17 last updated on 17/Sep/20

thank you sir

$${thank}\:{you}\:{sir} \\ $$

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