find the range of a
where a greater then 0 and smaller than 360 degrees
a) (2 sin sq. a ) smaller or equal than 1
b) (sin 2a + cos a ) smaller than 0
sorry for not knowing how to type maths symbols
solve the following a.maths
2008-12-31 7:35 am
回答 (1)
2008-12-31 7:48 pm
✔ 最佳答案
Explanation as follows:圖片參考：http://i238.photobucket.com/albums/ff245/chocolate328154/Maths582.jpg?t=1230695225
Please go to http://i238.photobucket.com/albums/ff245/chocolate328154/Maths582.jpg if you cannot see the image.
2008-12-31 11:49:50 補充：
For Q2, it is hard to solve the inequality directly, so the method of tabulation will help a lot in this Q.
參考: My Maths Knowledge
收錄日期: 2021-04-18 00:12:39
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081230000051KK02868