thank you :)
http://img408.imageshack.us/img408/6375/76963909yd4.png
更新1:
ignore the two way, i only need 1 way to solve it (Don't use sin, cos , tan formula)
更新2:
tell me If it is possible to solve it without using sin, cos , tan formula
ignore the two way, i only need 1 way to solve it (Don't use sin, cos , tan formula)
tell me If it is possible to solve it without using sin, cos , tan formula
收錄日期: 2021-05-01 00:58:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081128163547AALWgea