1.直线5x+4Y-2m-1=0与直线2x+3y-m=0的交点在第四象限,求m的取值范围.2.已知直线x+y-2=0,x-y-2=0,ax+y-4=0可围成一个三角形,求实数a的取值范围.3.求点P(-4,2)关于直线l:2X-y+1=0的对称点p'的坐标.4.求证:不论
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![1.直线5x+4Y-2m-1=0与直线2x+3y-m=0的交点在第四象限,求m的取值范围.2.已知直线x+y-2=0,x-y-2=0,ax+y-4=0可围成一个三角形,求实数a的取值范围.3.求点P(-4,2)关于直线l:2X-y+1=0的对称点p'的坐标.4.求证:不论](/uploads/image/z/3919340-20-0.jpg?t=1.%E7%9B%B4%E7%BA%BF5x%2B4Y-2m-1%3D0%E4%B8%8E%E7%9B%B4%E7%BA%BF2x%2B3y-m%3D0%E7%9A%84%E4%BA%A4%E7%82%B9%E5%9C%A8%E7%AC%AC%E5%9B%9B%E8%B1%A1%E9%99%90%2C%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.2.%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFx%2By-2%3D0%2Cx-y-2%3D0%2Cax%2By-4%3D0%E5%8F%AF%E5%9B%B4%E6%88%90%E4%B8%80%E4%B8%AA%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.3.%E6%B1%82%E7%82%B9P%28-4%2C2%29%E5%85%B3%E4%BA%8E%E7%9B%B4%E7%BA%BFl%3A2X-y%2B1%3D0%E7%9A%84%E5%AF%B9%E7%A7%B0%E7%82%B9p%27%E7%9A%84%E5%9D%90%E6%A0%87.4.%E6%B1%82%E8%AF%81%EF%BC%9A%E4%B8%8D%E8%AE%BA)
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