已知曲线C的方程为x平方+y平方+4x-2my+m=0.求第三问(3)过程和答案已知曲线C的方程为x平方+y平方+4x-2my+m=0.(1)求证:对任意实数m,方程是圆的方程;(2)r若此圆过点(负2,3),求m的值和此时圆C的圆心
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![已知曲线C的方程为x平方+y平方+4x-2my+m=0.求第三问(3)过程和答案已知曲线C的方程为x平方+y平方+4x-2my+m=0.(1)求证:对任意实数m,方程是圆的方程;(2)r若此圆过点(负2,3),求m的值和此时圆C的圆心](/uploads/image/z/1592476-52-6.jpg?t=%E5%B7%B2%E7%9F%A5%E6%9B%B2%E7%BA%BFC%E7%9A%84%E6%96%B9%E7%A8%8B%E4%B8%BAx%E5%B9%B3%E6%96%B9%2By%E5%B9%B3%E6%96%B9%2B4x-2my%2Bm%3D0.%E6%B1%82%E7%AC%AC%E4%B8%89%E9%97%AE%283%29%E8%BF%87%E7%A8%8B%E5%92%8C%E7%AD%94%E6%A1%88%E5%B7%B2%E7%9F%A5%E6%9B%B2%E7%BA%BFC%E7%9A%84%E6%96%B9%E7%A8%8B%E4%B8%BAx%E5%B9%B3%E6%96%B9%2By%E5%B9%B3%E6%96%B9%2B4x-2my%2Bm%3D0.%281%29%E6%B1%82%E8%AF%81%EF%BC%9A%E5%AF%B9%E4%BB%BB%E6%84%8F%E5%AE%9E%E6%95%B0m%2C%E6%96%B9%E7%A8%8B%E6%98%AF%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8B%3B%282%29r%E8%8B%A5%E6%AD%A4%E5%9C%86%E8%BF%87%E7%82%B9%EF%BC%88%E8%B4%9F2%2C3%EF%BC%89%2C%E6%B1%82m%E7%9A%84%E5%80%BC%E5%92%8C%E6%AD%A4%E6%97%B6%E5%9C%86C%E7%9A%84%E5%9C%86%E5%BF%83)
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