Forgot password?
 Register account
View 1757|Reply 2

一个积分

[Copy link]

4

Threads

23

Posts

154

Credits

Credits
154
QQ

Show all posts

pxchg1200 Posted 2013-9-22 15:13 |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!

3153

Threads

7906

Posts

610K

Credits

Credits
64096
QQ

Show all posts

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

3153

Threads

7906

Posts

610K

Credits

Credits
64096
QQ

Show all posts

hbghlyj Posted 2024-9-4 18:10
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}^ ...

Mobile version|Discuz Math Forum

2025-6-5 01:31 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit