例如有條inequality係甘樣o既:
(A^2+B)<100
甘我想將佢左邊淨番A:
A<squareroot(100-B)
定係
A>squareroot(100-B)
先o岩?
唔該晒
請問開方o個陣洗唔洗調轉個inequality符號?
2008-08-18 6:03 am
回答 (1)
2008-08-18 6:26 am
✔ 最佳答案
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(A^2+B)<100
A^2<100-B
-√(100-B)<A<√(100-B)
若是:(A^2+B)>100
A^2>100-B
A>√(100-B) or A<-√(100-B)
收錄日期: 2021-04-22 00:37:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080817000051KK02677