29.证明:(1)点A(a+2,b+2)与点B(b-4,a-6)关于4x+3y-11=0对称==>a=4,b=3(2)直线y=ax+b垂直于直线x+4y-1=0,在x轴上的截距为-1/2 ==>a=4,b=3
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![29.证明:(1)点A(a+2,b+2)与点B(b-4,a-6)关于4x+3y-11=0对称==>a=4,b=3(2)直线y=ax+b垂直于直线x+4y-1=0,在x轴上的截距为-1/2 ==>a=4,b=3](/uploads/image/z/10162121-41-1.jpg?t=29.%E8%AF%81%E6%98%8E%EF%BC%9A%281%29%E7%82%B9A%EF%BC%88a%2B2%2Cb%2B2%29%E4%B8%8E%E7%82%B9B%EF%BC%88b-4%2Ca-6%29%E5%85%B3%E4%BA%8E4x%2B3y-11%3D0%E5%AF%B9%E7%A7%B0%3D%3D%3Ea%3D4%2Cb%3D3%282%29%E7%9B%B4%E7%BA%BFy%3Dax%2Bb%E5%9E%82%E7%9B%B4%E4%BA%8E%E7%9B%B4%E7%BA%BFx%2B4y-1%3D0%2C%E5%9C%A8x%E8%BD%B4%E4%B8%8A%E7%9A%84%E6%88%AA%E8%B7%9D%E4%B8%BA-1%2F2+%3D%3D%3Ea%3D4%2Cb%3D3)
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