Mathematics, 28.01.2020 13:45 famouzgal

The equation x2 + y2 − 2x + 2y − 1 = 0 is the general form of the equation of a circle. what is the standard form of the equation?

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The equation x2 + y2 − 2x + 2y − 1 = 0 is the general form of the equation of a circle. what is the...