Images X Y DX

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X y dx. (X-Y)DX=(X+Y)dy. DX/X=dy/y. Решить dy\DX. Dy/DX-Y/X=X.
(X-Y)DX=(X+Y)dy. DX/X=dy/y. Решить dy\DX. Dy/DX-Y/X=X.

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