求交集（学生版）.docx

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1、题型：交集1、简单求交集集合 A=l,3, B=2,3,4则 AB=。已知集合M=x0x2,N = T0J2,则M N =.已知集合 A = 0J2,3,4,5, B = 1,3,5,7,9则 A B =。已知集合 A= 1, 2, 3, 4, B= 1, 3, 5),则 ACB=。设集合M = 2,3,4,5,集合N = 2,4,6,则McN=。已知集合A = L2,3,4, B = l,4,5, C = A B,则C的子集共有 个已知集合A= 1,2, 3,4, B=2,4, 6, 8,则A B中元素的个数为 个已知集合 M= x-3xl, N= -3, -2, -1, 0, 1),贝(

2、McN=。已知集合A = -2,T,0,2,3,8 = yy = f _,xGy4,则48中元素的个数是 个。已知集合 A = l,2,3,4,8 = y | y = 3x-2, x A,则 AryB-。已知集合A = x-lx2, B = xx3f 则A B =。若集合A = x-2x3, 8 = x,4,则集合A B等于。2、求参数已知集合A = 3,4,5,6, 3 = ,若A B = 6f 则。=。已知集合A= xy = j9* , 3 = xWq,若A B = A,则实数。的取值范围是设集合 A = l,2,4, B = (-4x + m = .若 AcB = l,则 B=已知A = l,+8), B = 0,3c-1,若AcBw0,则实数。的取值范围是设集合A = T,0,3, 8 = g + 3,2 + l, Ac8 = 3,则实数。的值为