问题
选择题
设全集U={x|0≤x<10,x∈N*},集合A={2,4,6,8},则CUA=( )
A.{0,1,3,5,7}
B.{0,1,3,5,7,9}
C.{1,3,5.7}
D.{1,3,5,7,9}
答案
根据题意,设全集U={x|0≤x<10,x∈N*}={1,2,3,4,5,6,7,8,9},
而A={2,4,6,8},
则?UA={1,3,5,7,9},
故选D.
设全集U={x|0≤x<10,x∈N*},集合A={2,4,6,8},则CUA=( )
A.{0,1,3,5,7}
B.{0,1,3,5,7,9}
C.{1,3,5.7}
D.{1,3,5,7,9}
根据题意,设全集U={x|0≤x<10,x∈N*}={1,2,3,4,5,6,7,8,9},
而A={2,4,6,8},
则?UA={1,3,5,7,9},
故选D.