数学模拟题求教！

samldy · 发表于 2013-11-4 21:41:07

Hi there!
I'm very much appreiciated any help on this:

2 is a factor of 13!+2, since it is a factor of both 13! and 2.

How could 2 be a factor of 13! and 2, so it is a factor of when they are added together?

乔豆麻袋 · 发表于 2013-11-4 22:24:00

2b+2c=2(b+c)。。。。额。。。楼主你能明白我意思么？

samldy · 发表于 2013-11-5 22:46:38

乔豆麻袋发表于 2013-11-4 22:24
2b+2c=2(b+c)。。。。额。。。楼主你能明白我意思么？

是的……谢谢你！我2了。

数学模拟题求教！

本帖子中包含更多资源

所属分类: GMAT考试

正在浏览此版块的会员 ()