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X x1. D корень x2-x1 2+ y2-y1 2. X1 y1 x2 y2. X2-y2 формула. Формула x1 x2.
D корень x2-x1 2+ y2-y1 2. X1 y1 x2 y2. X2-y2 формула. Формула x1 x2.

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