Tan^2 x+開方3 tan x=0
0<360
有5個答案,,,我只計到4個
仲有一個360計唔到
A.maths
2007-11-22 4:14 am
回答 (2)
2007-11-22 4:38 am
✔ 最佳答案
tan^2 x+sqr3 tan x = 0 tanx ( tanx + sqr3 ) = 0
tanx = 0 or tanx = - sqr3
x = 0*, 180*, 360* or 120*, 300*
So x = 0*, 120*, 180*, 300*, 360*
2007-11-21 20:40:00 補充：
The range of x should be 0<= x <= 360* for it has 5 solutions.
參考: My Maths Knowledge
2007-11-26 6:36 am
x = 0*, 120*, 180*, 300*, 360*
收錄日期: 2021-04-13 14:33:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071121000051KK03378