Mathematics, 03.08.2019 21:30 rockinrosh12

X2 + y2 + 4x - 2y = -1 is the equation of a circle in the xy-plane. what is the radius of the circle

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X2 + y2 + 4x - 2y = -1 is the equation of a circle in the xy-plane. what is the radius of the circle...

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