Images XY 2Y 2X

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Xy 2y 2x. 2y'-x/y=XY/(X^2-1). Y-XY'=2(1+X^2y'). X2+2xy+y2. Y'-2xy=1-2x^2.
2y'-x/y=XY/(X^2-1). Y-XY'=2(1+X^2y'). X2+2xy+y2. Y'-2xy=1-2x^2.

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