Use set-builder notation to describe the sets below:
(a) { {1}, {2}, {3},......}
(b) { {1,2,3,...), {2,4,6,...}, {3,6,9,...},....}
Math set-builder notation
2010-11-06 9:22 pm
回答 (1)
2010-11-07 1:03 am
✔ 最佳答案
(a) {{k} : k ∈ N}(b) {{kx : x ∈ N} : k ∈ N}
收錄日期: 2021-04-23 23:21:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101106000051KK00531