已知圆C:(X-1)²+(y-2)²=25直线(2m+1)X+(m+1)Y-7m-4=0,求证直线与圆相交求直线被圆所截的最短弦长时直线的方程和最短弦长
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![已知圆C:(X-1)²+(y-2)²=25直线(2m+1)X+(m+1)Y-7m-4=0,求证直线与圆相交求直线被圆所截的最短弦长时直线的方程和最短弦长](/uploads/image/z/1857961-1-1.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86C%EF%BC%9A%28X-1%29%26%23178%3B%2B%EF%BC%88y-2%EF%BC%89%26%23178%3B%3D25%E7%9B%B4%E7%BA%BF%EF%BC%882m%2B1%EF%BC%89X%2B%28m%2B1%29Y-7m-4%3D0%2C%E6%B1%82%E8%AF%81%E7%9B%B4%E7%BA%BF%E4%B8%8E%E5%9C%86%E7%9B%B8%E4%BA%A4%E6%B1%82%E7%9B%B4%E7%BA%BF%E8%A2%AB%E5%9C%86%E6%89%80%E6%88%AA%E7%9A%84%E6%9C%80%E7%9F%AD%E5%BC%A6%E9%95%BF%E6%97%B6%E7%9B%B4%E7%BA%BF%E7%9A%84%E6%96%B9%E7%A8%8B%E5%92%8C%E6%9C%80%E7%9F%AD%E5%BC%A6%E9%95%BF)
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