Consider f(x) = [ | x-1 | / (x-1) ] (x+1).
(a) Determine whether f(x) is continuous at x = 1
(b) Find lim x→1 f(x).
仲有我想問....夾住x-1果兩豎係咩意思?
F.4 m2 about limit~1
2010-04-10 2:49 am
回答 (2)
2010-04-10 5:50 am
✔ 最佳答案
======================================================圖片參考：http://img542.imageshack.us/img542/7096/59003831.png
2010-04-09 21:50:39 補充：
http://img542.imageshack.us/img542/7096/59003831.png
2010-04-09 21:51:42 補充：
Correction, a typo after f(1-) the limits should show x->0-
2010-04-10 2:54 am
absolute sign
2010-04-09 18:54:45 補充：
which means it always be positive
2010-04-09 18:54:45 補充：
which means it always be positive
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