two math question

2010-10-13 4:06 pm
http://img545.imageshack.us/f/68621283.png/

A6 is about property of real numbers.

A4 is about convergence of series.
更新1:

I have done A6 (a) and (c) part , can any one answer A6 ( b) or A4 .Thanks

回答 (1)

2010-10-15 5:35 am
✔ 最佳答案
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2010-10-14 21:35:55 補充:
http://img543.imageshack.us/img543/5043/27513613.png


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