设集合A={x/(x-3)(x-a)=0,a属于R},B={x/(x-4)(x-1)=0},求A交B,A并B
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![设集合A={x/(x-3)(x-a)=0,a属于R},B={x/(x-4)(x-1)=0},求A交B,A并B](/uploads/image/z/7116429-21-9.jpg?t=%E8%AE%BE%E9%9B%86%E5%90%88A%3D%7Bx%2F%28x-3%29%28x-a%29%3D0%2Ca%E5%B1%9E%E4%BA%8ER%7D%2CB%3D%7Bx%2F%28x-4%29%28x-1%29%3D0%7D%2C%E6%B1%82A%E4%BA%A4B%2CA%E5%B9%B6B)
设集合A={x/(x-3)(x-a)=0,a属于R},B={x/(x-4)(x-1)=0},求A交B,A并B
设集合A={x/(x-3)(x-a)=0,a属于R},B={x/(x-4)(x-1)=0},求A交B,A并B
设集合A={x/(x-3)(x-a)=0,a属于R},B={x/(x-4)(x-1)=0},求A交B,A并B
首先进行化简:A={x=3.x=a} B={x=4,x=1},因为a属于R所以当a=4时,A交B={4 }A并B={3,4,1}当 a=1时A交B={1},A并B={3,4,1}当a不等于1,4,3时A交B等于空集 A并B={1,4,3,a}