问题
选择题
集合A={1,2,3,4,5,6},B={3,4,5,X},若B⊆A,则X可以取的值为( )
A.1,2,3,4,5,6
B.1,2,3,4,6
C.1,2,3,6
D.1,2,6
答案
∵集合A={1,2,3,4,5,6},B={3,4,5,X}且B⊆A
∴X=1,2,6
故选D
集合A={1,2,3,4,5,6},B={3,4,5,X},若B⊆A,则X可以取的值为( )
A.1,2,3,4,5,6
B.1,2,3,4,6
C.1,2,3,6
D.1,2,6
∵集合A={1,2,3,4,5,6},B={3,4,5,X}且B⊆A
∴X=1,2,6
故选D