大学离散数学题，快考试了求大神帮忙

Question

求详细答案

Answer 1

r(R)=RU1x={,,,,}s(R)=RUR(逆)={,,,,}
s(R)=R(1阶)UR(2阶)UR=(3阶)…{,,,,}
R（1阶）={,，}
R（2阶）={,，}
R(3阶)={,,}
R(4阶={,，}
故:SR={,，，,,,,}本回答被网友采纳