Forgot password
 Register account
View 1323|Reply 4

看上去这么天衣无缝

[Copy link]

764

Threads

4672

Posts

27

Reputation

Show all posts

isee posted 2013-10-28 11:11 |Read mode
Last edited by isee 2013-10-28 14:22


图片内容:

高数

已知:$\dfrac 1 \infty=0$。

求证:$\dfrac 10=\infty$。

证明:$\dfrac 1 \infty=0$,

逆时针转$90^\circ$ ,

$-18=0$,

两边同时加$8$,

$-10=8$

顺时针转$90^\circ$ ,

$\dfrac 10=\infty$。

证毕!QED

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2013-10-28 12:11
早前在某群看到过,我的回复是:
广州kuing/kun 17:33:40
汗,QED 就是证毕的意思,他写证毕后又 QED,想装有型都不会装,
see also: http://zh.wikipedia.org/wiki/%E8%AD%89%E6%98%8E%E5%AE%8C%E7%95%A2

412

Threads

1432

Posts

3

Reputation

Show all posts

realnumber posted 2013-10-28 13:39
第一步,只是一侧转90°,应该等号两边都转90°的.

764

Threads

4672

Posts

27

Reputation

Show all posts

original poster isee posted 2013-10-28 14:23
一个比一个苛求……

461

Threads

959

Posts

4

Reputation

Show all posts

青青子衿 posted 2013-11-2 16:39
4226de1ba0cde40b8618bf87.jpg 1c950a7b02087bf4ff3d4f02f3d3572c10dfcf0c.jpg
我也来发几张!!

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

2025-7-20 05:42 GMT+8

Powered by Discuz!

Processed in 0.012104 seconds, 26 queries