题目内容
给定集合A、B,定义一种新运算:A*B={x|x∈A或x∈B,但xA∩B},又已知A={0,1,2},B={1,2,3},则A*B等于( )A.{0} B.{3} C.{0,3} D.{0,1,2,3}
C
解析:依题意x∈A∪B,但xA∩B,而A∪B={0,1,2,3},A∩B={1,2}故A*B={0,3}.
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题目内容
给定集合A、B,定义一种新运算:A*B={x|x∈A或x∈B,但xA∩B},又已知A={0,1,2},B={1,2,3},则A*B等于( )A.{0} B.{3} C.{0,3} D.{0,1,2,3}
C
解析:依题意x∈A∪B,但xA∩B,而A∪B={0,1,2,3},A∩B={1,2}故A*B={0,3}.