问道解析几何(直线方程)的题目.直线l:(2+m)x-(1+m)y-2(3+2m)=0,圆C:(x-1)^2+(y+1)^2=3求证:l与圆C恒交于两点.
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![问道解析几何(直线方程)的题目.直线l:(2+m)x-(1+m)y-2(3+2m)=0,圆C:(x-1)^2+(y+1)^2=3求证:l与圆C恒交于两点.](/uploads/image/z/2603288-56-8.jpg?t=%E9%97%AE%E9%81%93%E8%A7%A3%E6%9E%90%E5%87%A0%E4%BD%95%28%E7%9B%B4%E7%BA%BF%E6%96%B9%E7%A8%8B%29%E7%9A%84%E9%A2%98%E7%9B%AE.%E7%9B%B4%E7%BA%BFl%3A%282%EF%BC%8Bm%29x%EF%BC%8D%281%EF%BC%8Bm%29y%EF%BC%8D2%283%EF%BC%8B2m%29%EF%BC%9D0%2C%E5%9C%86C%3A%28x%EF%BC%8D1%29%EF%BC%BE2%EF%BC%8B%28y%EF%BC%8B1%29%EF%BC%BE2%EF%BC%9D3%E6%B1%82%E8%AF%81%3Al%E4%B8%8E%E5%9C%86C%E6%81%92%E4%BA%A4%E4%BA%8E%E4%B8%A4%E7%82%B9.)
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