Forgot password?
 Create new account
View 1623|Reply 2

一个积分

[Copy link]

4

Threads

23

Posts

154

Credits

Credits
154
QQ

Show all posts

pxchg1200 Posted at 2013-9-22 15:13:08 |Read mode
Prove that
\[\int_{0}^{\infty}{\left(\sum_{k=0}^{\infty}{\frac{(-1)^{k}P_{k+1}}{k!}x^{k}}  \right)dx}=2 \]
$P_{k+1}$ means the number $k+1$ prime number,note $P_{1}=3$
(tian275461)
Let's solution say the method!

3147

Threads

8493

Posts

610K

Credits

Credits
66163
QQ

Show all posts

hbghlyj Posted at 2022-9-14 11:33:49
原来出题人在论坛上
@tian27546西西

3147

Threads

8493

Posts

610K

Credits

Credits
66163
QQ

Show all posts

hbghlyj Posted at 2024-9-4 18:10:14
更多讨论请参阅...
1# kastin; 43454242014-5-28 14:40:08. 刚在这里看到的题目http://kuing.orzweb.net/viewthread.php?tid=272&extra=page%3D3
\[\int_{0}^{\infty}{\left(\sum_{k=0}^ ...

手机版Mobile version|Leisure Math Forum

2025-4-20 22:16 GMT+8

Powered by Discuz!

× Quick Reply To Top Return to the list