Σ(x=1 to ∞) sinx/x
2.
Σ(x=1 to ∞) (-1)^(x-1) /x
3.
√(2+√(2+√(2+...
4.
1+√(1+2√(1+3√(1+4√(1+5√(1+...
5.
Σ(x=1 to ∞) (-1)^(2x-1) /√(x^2+1)
更新1:
識做幾題就做幾題啦
識做幾題就做幾題啦
收錄日期: 2021-04-23 23:26:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120710000051KK00864