设集合A={(x,y)|a1x+b1y+c1=0},B={(x,y)|a2x+b2y+c2=0},则方程组{a1x+b1y+c1=0 a2x+b2y+c2=0}的解集用A,B可表示为( );方程(a1x+b1y+c1)乘以(a2x+b2y+c2)=0的解集用A,B可表示为( ).A∪B,A∩B
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![设集合A={(x,y)|a1x+b1y+c1=0},B={(x,y)|a2x+b2y+c2=0},则方程组{a1x+b1y+c1=0 a2x+b2y+c2=0}的解集用A,B可表示为( );方程(a1x+b1y+c1)乘以(a2x+b2y+c2)=0的解集用A,B可表示为( ).A∪B,A∩B](/uploads/image/z/10753262-62-2.jpg?t=%E8%AE%BE%E9%9B%86%E5%90%88A%3D%EF%BD%9B%EF%BC%88x%2Cy%29%7Ca1x%2Bb1y%2Bc1%3D0%7D%2CB%3D%EF%BD%9B%EF%BC%88x%2Cy%29%7Ca2x%2Bb2y%2Bc2%3D0%7D%2C%E5%88%99%E6%96%B9%E7%A8%8B%E7%BB%84%EF%BD%9Ba1x%2Bb1y%2Bc1%3D0+a2x%2Bb2y%2Bc2%3D0%EF%BD%9D%E7%9A%84%E8%A7%A3%E9%9B%86%E7%94%A8A%2CB%E5%8F%AF%E8%A1%A8%E7%A4%BA%E4%B8%BA%EF%BC%88+%EF%BC%89%EF%BC%9B%E6%96%B9%E7%A8%8B%EF%BC%88a1x%2Bb1y%2Bc1%EF%BC%89%E4%B9%98%E4%BB%A5%EF%BC%88a2x%2Bb2y%2Bc2%EF%BC%89%3D0%E7%9A%84%E8%A7%A3%E9%9B%86%E7%94%A8A%2CB%E5%8F%AF%E8%A1%A8%E7%A4%BA%E4%B8%BA%EF%BC%88+%EF%BC%89.A%E2%88%AAB%2CA%E2%88%A9B)
设集合A={(x,y)|a1x+b1y+c1=0},B={(x,y)|a2x+b2y+c2=0},则方程组{a1x+b1y+c1=0 a2x+b2y+c2=0}的解集用A,B可表示为( );方程(a1x+b1y+c1)乘以(a2x+b2y+c2)=0的解集用A,B可表示为( ).A∪B,A∩B
设集合A={(x,y)|a1x+b1y+c1=0},B={(x,y)|a2x+b2y+c2=0},则方程组{a1x+b1y+c1=0 a2x+b2y+c2=0}的解集用A,B可表示为( );方程(a1x+b1y+c1)乘以(a2x+b2y+c2)=0的解集用A,B可表示为( ).
A∪B,A∩B
设集合A={(x,y)|a1x+b1y+c1=0},B={(x,y)|a2x+b2y+c2=0},则方程组{a1x+b1y+c1=0 a2x+b2y+c2=0}的解集用A,B可表示为( );方程(a1x+b1y+c1)乘以(a2x+b2y+c2)=0的解集用A,B可表示为( ).A∪B,A∩B
第一个括号填 A∩B,同时满足两个方程,则取公共部分,交集
第二个填A∪B,即只要有一因子为零即可导致乘积为0,并起来
(1).必须满足2个方程,则需A∩B.
(2).满足任意1方程都能使原式为0,则需A∪B。