Hutao_hutao | 1 points | May 22 2022 03:41:48

简单的数学题 1 + 1/4 + 1/9 + 1/16 + ..+ 1/n^2 = ?

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[-] superzhinyaman | 1 points | May 22 2022 03:45:30

“我就说大家都同意原批司马吧”

[-] AutoModerator | 1 points | May 22 2022 03:45:31

运气用完了，妈妈也走了。最后还是没抽到甘雨，一大遗憾。

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[-] Thirstyseeker | 1 points | May 22 2022 04:07:08

什么苏联笑话

[-] loveletter- | 1 points | May 22 2022 03:49:06

没想到水平这么低

[-] 1q956_ | 1 points | May 22 2022 03:58:20

截止目前为止，51票中只有12票选择了π\^2/6

[-] Antonzonda | 1 points | May 22 2022 04:13:08

数学tv

[-] Villoweck | 1 points | May 22 2022 04:19:05

我国家主席水平,哪位中学生可以解释下为什么是π\^2 /6?

[-] Hutao_hutao | 1 points | May 22 2022 04:25:58

https://en.wikipedia.org/wiki/Basel_problem

[-] devil66612345 | 1 points | May 22 2022 04:25:02

好像是收敛数列吧，大一学过已经忘了

[-] Ok-Progress-2991 | 1 points | May 22 2022 04:25:45

youtuber : 3blue1brown 劝你多看

[-] estadopiedraangular | 1 points | May 22 2022 04:26:36

一群費拉碳水四眼做題家...

[-] Adept-Orchid1181 | 1 points | May 22 2022 04:27:37

级数嗯造

[-] noisyupstairs8964 | 1 points | May 22 2022 04:28:15

高数tv

[-] realTsarOfRussia | 1 points | May 22 2022 04:38:03

一這是一個收斂級數（柯西準則證明），無窮直接排除；第二他的值可以估算，是一個在一和二之間的值，所以是π\^2 /6。原批是乾擾選項，雖然是對的但是和題乾無關，故排除。當然這是純做選擇題題的方法

[-] AutoModerator | 1 points | May 22 2022 04:38:03

运气用完了，妈妈也走了。最后还是没抽到甘雨，一大遗憾。

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[-] Cyborg42x | 1 points | May 22 2022 04:50:37

原批司马了（不会）

[-] AutoModerator | 1 points | May 22 2022 04:50:37

运气用完了，妈妈也走了。最后还是没抽到甘雨，一大遗憾。

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[-] Altruistic-Secret-50 | 1 points | May 22 2022 06:40:52

蠢比方法：1/n＾2＜0.5（（1／（n-1））-1／（n＋1））＝1／（n＾2-1） 保留前几位裂项相消估算 高中这题给公式的

[-] youaresocold | 1 points | May 22 2022 08:48:19

傅立叶级数？妈的学过全忘了