Let R be a relation from {a, b, c, d} to {1, 2, 3} defined by R = { (1, a) , (1, b) , (2, c) , (3, d) } .
What is the inverse relation R^(-1) ?
Please do explain and show your workings clearly...I have trouble doing this chapter's questions..Thank you..:)
Inverse relation?
2008-03-25 4:21 am
回答 (2)
2008-03-25 4:34 am
✔ 最佳答案
The given data isR(1) = a------>R^-1(a) = 1
R(1) = b------->R^-1(b)=1
R(2) = ----------R^-1(c)= 2
R(3) = d---------R^-1(d) = 3
so R^-1 = {(a,1), (b,1), (c,2), (d,3)}
2008-03-25 4:26 am
收錄日期: 2021-05-03 13:58:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080324202147AAJjSFZ