find the value of X
2 sinX - 5cosX = 4cosX - sinX
please helpme to solve this maths question ~thx~~
2008-03-24 12:15 am
回答 (1)
2008-03-24 12:41 am
✔ 最佳答案
2 sinX - 5cosX = 4cosX - sinX3sinX=9cosX
sinX=3cosX
tanX=3
X=71.6o or X=252o for(0o<=X<=360o)
收錄日期: 2021-04-25 17:20:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080323000051KK01744