#1 math問題
6(r-1)^2+8(r-1)
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how to do with indentity?
10/13 19:44
wilson29
#2
[quote]原帖由 [i]wilson29[/i] 於 2011-10-13 19:44 發表
6(r-1)[color=Red]^[/color]2+8(r-1)
=================
how to do with indentity? [/quote]
唔明...
10/13 20:12
a0411047
#3 回復 #1,#2 的帖子
#2
^2即係2次
#1
indentity X
identity O
10/13 20:23
Reagon仔
#4
..