[微積] 求導數
(1+x)(2+x)(3+x)......(9+x)
f(x)= ----------------------------
(1-x)(2-x)(3-x)......(9-x)
求f'(0)
9
Ans: 2 Σ (1/n)
n=1
感謝回答:)
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.121.204.78
推
05/19 00:32, , 1F
05/19 00:32, 1F
→
05/19 00:33, , 2F
05/19 00:33, 2F
→
05/19 00:33, , 3F
05/19 00:33, 3F
→
05/19 00:33, , 4F
05/19 00:33, 4F
討論串 (同標題文章)