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Dx y. Dy/x-1=DX/Y-2. (X-Y)DX=(X+Y)dy. Dy/DX-Y/X=X. Dy/DX= Y-X^2.
Dy/x-1=DX/Y-2. (X-Y)DX=(X+Y)dy. Dy/DX-Y/X=X. Dy/DX= Y-X^2.

See also