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解题方法
1 . 已知a,b均为正实数,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2023-11-16更新
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712次组卷
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3卷引用:江苏省苏州十中2023-2024学年高一上学期10月月考数学试题
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2 . 已知二次函数
(
,a,b,c为常数)的对称轴为
,其图象如图所示,则下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/12/9b2943e7-08d3-4305-b10a-bb1231054c0e.png?resizew=147)
A.![]() |
B.当![]() ![]() |
C.关于![]() ![]() ![]() |
D.若关于![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
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3 . 给定集合
,定义
,且
,则
△
叫做集合
与集合
的对称差,若集合
,
,
,
,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a395870f77df4005141e9e4d72751fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bb7c317f907cd7fda5ae49b24f2d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a9209b8912120c3071e1862ae60926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b852154fbb6c8749f38d47ceadb5d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258de9eed51effa50df0c553d8923931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274647d952cb0608ddc224110a9431a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf9dc012c88456de7e1d26c7515a538.png)
A.![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() |
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2022-12-11更新
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230次组卷
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3卷引用:江苏省苏州市常熟中学2023-2024学年高一上学期十月阶段性学业水平调研数学试题
江苏省苏州市常熟中学2023-2024学年高一上学期十月阶段性学业水平调研数学试题江苏省南京市高淳高级中学2022-2023学年高一上学期10月月考数学试题(已下线)单元高难问题01集合中的新定义问题-【倍速学习法】(人教A版2019必修第一册)