Prove that :
[sqrt 3 + tan(x - 30 degree)]/[sqrt 3 - tan(x - 30 degree)] = (1 + sqrt 3 tan x)/2
Trig. Identity
2012-06-15 4:56 pm
回答 (1)
2012-06-15 5:27 pm
✔ 最佳答案
Solutions are as follows:圖片參考：http://imgcld.yimg.com/8/n/HA00108663/o/701206150007913873410810.jpg
參考: knowledge
收錄日期: 2021-04-28 14:21:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120615000051KK00079