Photos X Y DX

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X y dx. (X+3)dy-(y+2)DX=0. (X+Y^2)dy=YDX , Y(0)=1. Dy/x-1=DX/Y-2; Y=4; X=0. X^2(dy)^2 - 4y^2(DX)^2.
(X+3)dy-(y+2)DX=0. (X+Y^2)dy=YDX , Y(0)=1. Dy/x-1=DX/Y-2; Y=4; X=0. X^2(dy)^2 - 4y^2(DX)^2.

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