Photos E 3X

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E 3x. X/dy=y+2/DX. E^X+Y=E^XY - 1. Y''+A^2y=e^x. (X-Y)(X+Y) формула.
X/dy=y+2/DX. E^X+Y=E^XY - 1. Y''+A^2y=e^x. (X-Y)(X+Y) формула.

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