题目内容
设M={0,1,2,4,5,7},N={1,4,6,8,9},P={4,7,9},则(MN)(MP)等于
[ ]
A.{1,4} |
B.{1,7} |
C.{4,7} |
D.{1,4,7} |
答案:D
解析:
解析:
MN={4 ,1},MP={4,7},(MN)(MP)={1,4,7}. |
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