高中数学代数与函数一其他练习题131
题目内容

关于x的不等式|cosx+lg(9-x2)|<|cosx|+|lg(9-x2)|的解集为

2021-07-20

A.(-3,-2http://picflow.koolearn.com/upload/papers/g02/20120307/20120307102222935888.gif)∪(2http://picflow.koolearn.com/upload/papers/g02/20120307/20120307102222943888.gif,3)

B.http://picflow.koolearn.com/upload/papers/g02/20120307/201203071022229491163.gif

C.(-2http://picflow.koolearn.com/upload/papers/g02/20120307/20120307102222963888.gif,2http://picflow.koolearn.com/upload/papers/g02/20120307/20120307102222969888.gif

D.(-3,3)

题目答案

试卷相关题目

最新试卷
热门试卷

长理培训客户端 资讯,试题,视频一手掌握

去 App Store 免费下载 iOS 客户端