Photos 2 DX DY

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2 dx dy. (X + Y -2)DX + (X-Y+4)dy =0. X^2dx=3y^2dy. (X+3)dy=(y+2)DX. Dy/DX = X^2.
(X + Y -2)DX + (X-Y+4)dy =0. X^2dx=3y^2dy. (X+3)dy=(y+2)DX. Dy/DX = X^2.

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