解题方法
1 . 已知命题
“
”,若命题
的否定为假,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14dbea1e310d4a53e6368f68c2e97c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-10-28更新
|
441次组卷
|
2卷引用:江苏省常州市横林高级中学2022-2023学年高一上学期10月阶段性测试数学试题
解题方法
2 . 命题
:“关于
的不等式
对任意
恒成立”的必要不充分条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cafdbd2c1a96d38dfc2ceb45868a148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b7baad395215d2417f932d87e3aa4e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知
,
,
(1)若
,求
;
(2)若
,求实数
的取值范围;
(3)若
,若
是
的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8879a19ce7180a51fbc7784ef002f294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6339659081ae1b9ca58aa9d3f6bcf63e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd53a79a58c7e7ec09b426d2a20fef9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d5e131bfa717cd28891ac1df3c3319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172c80b0d9bcb52d4071f27171819ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
,
,(a为常数).
(1)若函数
的图象与x轴交于点
,
,且线段AB的长度为6,求该函数
的解析式;
(2)若函数
的图像不恒在函数
的图像上方,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4373fcf1c86d83da5469961be7ac49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bc17ff3027f8946d3c6f7069e99aef.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40011987a55a60e355651253dcc62ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b2f93f19e8d47c402f8006346c13f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1e128e5ae1acc88eeda44ba5591796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de79c3ff780cff1e77a25696e7e67a0.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5de1268af2c0cb595ddf283a413b600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e867b59b85ac4aeeac3f8791d7ed37.png)
您最近一年使用:0次
名校
5 . 已知集合
,
,a为常数,记
,求集合D(用区间表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e368e133d2e4ba068bd6a07c8158fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea68a9e6595e359f14e43e90d03b7df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ce512231c1e5ee755b2a00cdbe7528.png)
您最近一年使用:0次
名校
解题方法
6 . 设集合
(1)若
,求实数a的取值范围;
(2)若
,求实数a的取值范围;
(3)若
,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca2a8a60e9d6302254c85b7b73c16167.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908aacb55ade6a7de972544a225425bd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86c460b7c5ed5e1e203635db58e65c1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c03f25640e0b42a2734a8afe7442b9ce.png)
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解题方法
7 . 已知全集U=R,集合A={x|x2-5x-6≤0},B={x|-3<x<3},则如图所示的Venn图中阴影部分表示的集合为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/08370190-afc3-46cb-9c56-3009af66dc00.png?resizew=158)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/08370190-afc3-46cb-9c56-3009af66dc00.png?resizew=158)
A.(-3,-1] | B.(-1,3] |
C.(1,3] | D.[3,6] |
您最近一年使用:0次
8 . 已知关于
的不等式
.
(1)当
,
,
时,求该不等式的解集;
(2)当
,
,
时,求该不等式的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95f3fa710253c107b6e8fb458108b0d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6aeba88a67720f9b5a83a25701dc5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4480de5e087e938119be7668775879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e768f6d07a30c490a1011a8256548bb.png)
您最近一年使用:0次
2022-10-15更新
|
86次组卷
|
2卷引用:江苏省常州市西夏墅中学2022-2023学年高一上学期10月阶段性测验数学试题
9 . 已知集合A={x∈R|0≤ax+1≤5},B={x∈R|2x2-3x-2≤0} (a≠0).
(1)集合A,B能否相等?若能,求出实数a的值;若不能,试说出理由.
(2)若命题p:x∈A,命题q:x∈B,且p是q的充分不必要条件,求实数a的取值范围.
(1)集合A,B能否相等?若能,求出实数a的值;若不能,试说出理由.
(2)若命题p:x∈A,命题q:x∈B,且p是q的充分不必要条件,求实数a的取值范围.
您最近一年使用:0次
10 . 已知集合
,
.
(1)若
,求集合
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a57d457cc2ae81649233445a44c7a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2849a35981de32791337eace2e97aed4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9837fc7c15b028bd22ede513637abe39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ee569a8ff677073ef2b7aaac3ce69f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b4a0e6a36a55f3c64af3f773f05f8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
您最近一年使用:0次