设A={1,2,3,4,5},A上二元关系R={〈1,2〉,〈3,4〉,〈2,2〉},S={〈2,4〉,〈3,1〉,〈4,2〉},则S-1<img src="https://zk.995w.com/lqwvjeImg/d1/d1e1f707ed0341b965907a614caa6cd7.png" >R-1的运算结果是( )<br>·{〈4,1〉,〈2,3〉,〈4,2〉}<br>·{〈2,4〉,〈2,3〉,〈4,2〉}<br>·{〈4,1〉,〈2,3〉,〈2,4〉}<br>·{〈2,2〉,〈3,1〉,〈4,4〉}

设A={1,2,3,4,5},A上二元关系R={〈1,2〉,〈3,4〉,〈2,2〉},S={〈2,4〉,〈3,1〉,〈4,2〉},则S-1

R-1的运算结果是( )
·{〈4,1〉,〈2,3〉,〈4,2〉}
·{〈2,4〉,〈2,3〉,〈4,2〉}
·{〈4,1〉,〈2,3〉,〈2,4〉}
·{〈2,2〉,〈3,1〉,〈4,4〉}

参考答案

随机试卷