Автор - Abzal27

35 баллов. Найти частные производные​

Ответ

Автор - Artem112

u=arcsinleft(dfrac{x^2}{y}-zright)

Частные производные:

u'_x=dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2} }cdot left(dfrac{x^2}{y}-zright)'_x=\=dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2}}cdotdfrac{2x}{y}=dfrac{2x}{ysqrt{1-left(dfrac{x^2}{y}-zright)^2}}

u'_y=dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2} }cdot left(dfrac{x^2}{y}-zright)'_y=\=dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2}}cdotleft(-dfrac{x^2}{y^2}right)=-dfrac{x^2}{y^2sqrt{1-left(dfrac{x^2}{y}-zright)^2}}

u'_z=dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2} }cdot left(dfrac{x^2}{y}-zright)'_z=\=dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2}}cdotleft(-1right)=-dfrac{1}{sqrt{1-left(dfrac{x^2}{y}-zright)^2}}

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