【正确答案】：{1,2,3,4},{1,2,3,4,5,6,7,8,9,10}或A
设集合A={1,2,3,4,5,6,7,8,9,10},二元关系R={ x,y∈A,x是y的因子,x
- 2024-08-03 23:54:09
- 离散数学(02324)
设集合A={1,2,3,4,5,6,7,8,9,10},二元关系R={ x,y∈A,x是y的因子,x<5},则domR=_________,ranR=_________。
【正确答案】：{1,2,3,4},{1,2,3,4,5,6,7,8,9,10}或A
【正确答案】：{1,2,3,4},{1,2,3,4,5,6,7,8,9,10}或A