Mathematies question
2015-04-07 12:13 am
0 -1-2+3-4+5+6+7-8+9+10+11+12+13+14+15-16+17+18+19+...+31-32+33+34+35+...+63-64+65+66+67+...+127-128=?
回答 (1)
2015-04-07 12:30 am
收錄日期: 2021-04-15 19:03:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150406000051KK00039