Forgot password
 Register account
original poster: 数学小黄

[几何] 异面直线距离一公式

[Copy link]

12

Threads

14

Posts

0

Reputation

Show all posts

original poster 数学小黄 posted 2013-9-13 09:59
回复 16# kuing


    谢谢管理员,辛苦了~那本书关于这个结论的提出,先给出了三面角的正弦定理,第一余弦定理,第二余弦定理,所以我猜测是不是运用这些工具后,会不会简单。我暂时也是刚接触这些公式,还不会熟练运用~

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2013-9-13 11:31
回复 21# 数学小黄

噢,那我15楼第一步证的公式是哪个定理?
我立几也比较水,定理也不熟悉,所以前面那些都是即推即用……

12

Threads

14

Posts

0

Reputation

Show all posts

original poster 数学小黄 posted 2013-9-14 11:12
回复 22# kuing


    15楼证明的确实就是三面角的“第一余弦定理”

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

2025-7-21 05:36 GMT+8

Powered by Discuz!

Processed in 0.031793 seconds, 20 queries