高一数学题——圆的方程1.已知圆x2+y2-4x+6y-12=0的内部有一点A(4,-2),则以A为中点的弦所在的直线方程为——.2.圆x2+y2-2x-2y+1=0上的动点Q到直线3x+4y+8=0距离的最小值为——,最大值为——.3.直线L
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![高一数学题——圆的方程1.已知圆x2+y2-4x+6y-12=0的内部有一点A(4,-2),则以A为中点的弦所在的直线方程为——.2.圆x2+y2-2x-2y+1=0上的动点Q到直线3x+4y+8=0距离的最小值为——,最大值为——.3.直线L](/uploads/image/z/1169247-39-7.jpg?t=%E9%AB%98%E4%B8%80%E6%95%B0%E5%AD%A6%E9%A2%98%E2%80%94%E2%80%94%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8B1.%E5%B7%B2%E7%9F%A5%E5%9C%86x2%2By2-4x%2B6y-12%3D0%E7%9A%84%E5%86%85%E9%83%A8%E6%9C%89%E4%B8%80%E7%82%B9A%EF%BC%884%2C-2%EF%BC%89%2C%E5%88%99%E4%BB%A5A%E4%B8%BA%E4%B8%AD%E7%82%B9%E7%9A%84%E5%BC%A6%E6%89%80%E5%9C%A8%E7%9A%84%E7%9B%B4%E7%BA%BF%E6%96%B9%E7%A8%8B%E4%B8%BA%E2%80%94%E2%80%94.2.%E5%9C%86x2%2By2-2x-2y%2B1%3D0%E4%B8%8A%E7%9A%84%E5%8A%A8%E7%82%B9Q%E5%88%B0%E7%9B%B4%E7%BA%BF3x%2B4y%2B8%3D0%E8%B7%9D%E7%A6%BB%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E4%B8%BA%E2%80%94%E2%80%94%2C%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%BA%E2%80%94%E2%80%94.3.%E7%9B%B4%E7%BA%BFL)
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