Forgot password
 Register account
View 283|Reply 5

[不等式] 2024阿里巴巴全球数学竞赛决赛数列题

[Copy link]

422

Threads

911

Posts

0

Reputation

Show all posts

lemondian posted 2024-6-30 13:47 |Read mode
2024阿里巴巴全球数学竞赛决赛数列题:
看到一种证法:
请问画红线是如何得到的?
63001.jpg

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2024-6-30 13:50
红线那一块就是归纳法啊

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2024-6-30 13:52
话说,这决赛竟然用十年前的老题,见:forum.php?mod=viewthread&tid=2554

422

Threads

911

Posts

0

Reputation

Show all posts

original poster lemondian posted 2024-6-30 20:48
kuing 发表于 2024-6-30 13:50
红线那一块就是归纳法啊
1#的证明对不?

6

Threads

245

Posts

6

Reputation

Show all posts

睡神 posted 2024-7-1 16:34 from mobile
kuing 发表于 2024-6-30 13:52
话说,这决赛竟然用十年前的老题,见:https://kuing.cjhb.site/forum.php?mod=viewthread&tid=25 ...
论坛问23年那题时,我就说阿里的这道题根本就不是原创的,刚考完24年决赛那会,我又说过了
除了不懂,就是装懂

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2024-7-1 22:00
睡神 发表于 2024-7-1 16:34
论坛问23年那题时,我就说阿里的这道题根本就不是原创的,刚考完24年决赛那会,我又说过了 ...
是的,2023 是这个:forum.php?mod=viewthread&tid=11183

Quick Reply

Advanced Mode
B Color Image Link Quote Code Smilies
You have to log in before you can reply Login | Register account

$\LaTeX$ formula tutorial

Mobile version

2025-7-15 15:16 GMT+8

Powered by Discuz!

Processed in 0.015319 seconds, 25 queries