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x^{2} + y^{2} = 4

x^{2} + y^{2} + 8 x + 6 y + 16 = 0

x^{2} + y^{2} + 8 x + 6 y - 16 = 0

x^{2} + y^{2} - 8 x - 6 y + 16 = 0

x^{2} + y^{2} - 8 x - 6 y - 16 = 0

ANS : 3

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