Images Z 2X 2Y

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Z 2x 2y. Параболоид z x 2+y 2. Параболоид x^2 - y^2 = 2z. X2+y2=r2 цилиндр. (X^2+Y^2)Y'=4x differensial.
Параболоид z x 2+y 2. Параболоид x^2 - y^2 = 2z. X2+y2=r2 цилиндр. (X^2+Y^2)Y'=4x differensial.

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