Photos 2 DX DY

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2 dx dy. (Y+X^2)DX=XDY. (Y+1)DX=2xdy. XDY=(3 x2+y2+y) DX. Logx^2(x^2/y^3).
(Y+X^2)DX=XDY. (Y+1)DX=2xdy. XDY=(3 x2+y2+y) DX. Logx^2(x^2/y^3).

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