题目内容
(请给出正确答案)
[单选题]
已知A={1,2,3,4,5,6}; B={1,3,4,6,7,8}; 那么A∩B=()
A.{1,2,3,4,5,6}
B.{1,3,4,6}
C.{1,2,3,4,5,6,7,8}
D.{1,2,3,4,5,6,7,8,9}
答案
B、{1,3,4,6}
如果结果不匹配,请 联系老师 获取答案
A.{1,2,3,4,5,6}
B.{1,3,4,6}
C.{1,2,3,4,5,6,7,8}
D.{1,2,3,4,5,6,7,8,9}
B、{1,3,4,6}
A.P{X=n}=1/6,(n=1,2,3,4,5,6)
B.P{X=n}=n/6(n=1,2,3,4,5,6)
C.P{X=n}=(n-1)/6(n=1,2,3,4,5.6)
D.P{X=n}=1-n/6(n=1,2,3,4,5,6)
如果U={1,2,3,4,5,6},A={1,2,3},B={2,4,6},求:
(1)A' (2)B' (3)A'∪B' (4)A'∩B'
A.intx[][3]={0};
B.intx[2][3]={{1,2},{3,4},{5,6}};
C.intx[][3]={{1,2,3},{4,5,6}};
D.intx[2][3]={1,2,3,4,5,6};
A.int x[2][3]={{1,2},{3,4},{5,6}}
B.int x[2][3]={1,2,3,4,5,6}
C.int x[][3]={0}
D.int x[][3]={{1,2,3},{4,5,6}}