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Автор - Khenku

Помогите решить пожалуйста!!! Найти полный дифференциал функции:
z = y * In x

Ответ

Проверено экспертом

Автор - nafanya2014
z=f(x,y) \  \ dz=f`_{x}dx+f`_ydy
f`_x=z`_x=ycodt(lnx)`= frac{y}{x}  \  \ f`_y=z`_y=inxcodt(y)`=lnx  \  \ dz= frac{y}{x} dx+lnxdy

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