有條數唔識做, 望高手教路

2010-12-05 9:05 am

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上面係f (X) X係正負無限之間

e家要show that 下面係right

哩條唔識~
希望大家幫到手
thx

回答 (2)

2010-12-05 7:00 pm
✔ 最佳答案
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2010-12-05 11:00:48 補充:
http://img808.imageshack.us/img808/589/39844191.png
2010-12-06 2:24 am
你系邊度搵嫁?
其實仲有幾條唔太識=.=


收錄日期: 2021-04-23 23:23:48
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