Discuz Math Forum»Forum › Mathematics › High School › 一道三角题

Return to list New

View 2117|Reply 2

[函数] 一道三角题

[Copy link]

10 Threads	26 Posts	197 Credits

Credits: 197

Send PM

chr93918 Posted 2013-12-28 20:06 |Read mode

在三角形ABC中，cosb/sina+cosa/sinb=2,求证此三角形是直角三角形

Reply Edit

686 Threads	110K Posts	910K Credits

Credits: 91229

Send PM

kuing Posted 2013-12-28 20:17

见 bbs.pep.com.cn/thread-652343-1-1.html

Reply Edit

10 Threads	26 Posts	197 Credits

Credits: 197

Send PM

Author| chr93918 Posted 2013-12-28 21:07

谢谢

Reply Edit

Return to list New

Mobile version|Discuz Math Forum

2025-5-31 11:21 GMT+8

Powered by Discuz!

× Quick Reply To Top Edit