有a.maths唔識做
2017/06/24 21:32
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有a.maths唔識做
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equation of their common chord is (x^2 + y^2 + 4x - 14y + 27) - (x^2 + y^2 - 8x + 4y - 45) = 0 12x - 18y + 72 = 0 2x - 3y + 12 = 0
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有a.maths唔識做
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Find the equation of the circle having the common chor of the circles x^2 + y^2 + 4x - 14y + 27 = 0 and x^2 + y^2 - 8x + 4y - 45 = 0最佳解答:
equation of their common chord is (x^2 + y^2 + 4x - 14y + 27) - (x^2 + y^2 - 8x + 4y - 45) = 0 12x - 18y + 72 = 0 2x - 3y + 12 = 0
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