Images A X2 XY Y2 X Y

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A x2 xy y2 x y. X^2y''+XY'=1. X / x2 -y2 - 1/ x+y ответ. 1/X^2. X2+XY формула.
X^2y''+XY'=1. X / x2 -y2 - 1/ x+y ответ. 1/X^2. X2+XY формула.

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