what does ∣ 1 / sinα－ 1/ cos α∣means?
(what does this '|' sign means?)
what is ∣ 1 / sinα－ 1/ cos α∣?
2011-09-17 5:05 am
回答 (3)
2011-09-17 5:18 am
✔ 最佳答案
|x| means the absolute value of x.For example |2| = 2, |-4| = 4 etc.
Graph for y = |x|:
圖片參考：http://images.encyclopedia.com/utility/image.aspx?id=2793339&imagetype=Hero
2011-09-16 21:42:20 補充：
I don't quite understand your question...
2011-09-16 22:25:49 補充：
Yes~~~~~~~
參考: Knowledge is power.
2011-09-17 9:25 am
Jason, for 004, you should say "I'm going to choose your answer as the best solution after 3 hours", Your sentence is a Chinglish one.
2011-09-17 5:48 am
do u mean:
no matter x=a or -a,
|x|=a
right?
2011-09-16 22:26:33 補充：
im going to choose u the best 3 hrs later!
2011-09-17 13:32:32 補充：
Ah.. Thx...
no matter x=a or -a,
|x|=a
right?
2011-09-16 22:26:33 補充：
im going to choose u the best 3 hrs later!
2011-09-17 13:32:32 補充：
Ah.. Thx...
收錄日期: 2021-04-13 18:14:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110916000051KK00742