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if-U-f-x-y-z-and-z-f-x-y-then-find-the-formula-d-2-u-dx-2-in-terms-of-derivetive-of-F-and-derivative-of-z-respectively-




Question Number 130976 by BHOOPENDRA last updated on 31/Jan/21
if U=f(x,y,z)and z=f(x,y)then find   the formula (d^2 u/dx^2 ) in terms of derivetive  of F and derivative of z respectively?
$${if}\:{U}={f}\left({x},{y},{z}\right){and}\:{z}={f}\left({x},{y}\right){then}\:{find}\: \\ $$$${the}\:{formula}\:\frac{{d}^{\mathrm{2}} {u}}{{dx}^{\mathrm{2}} }\:{in}\:{terms}\:{of}\:{derivetive} \\ $$$${of}\:{F}\:{and}\:{derivative}\:{of}\:{z}\:{respectively}? \\ $$

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