1 . 已知关于
的一元二次不等式
的解集为{
或
},则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95f3fa710253c107b6e8fb458108b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58452d1f3a505b020fbc68e05601e747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
A.![]() ![]() | B.![]() |
C.不等式![]() ![]() | D.不等式![]() ![]() |
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2024-03-06更新
|
498次组卷
|
2卷引用:山东省临沂市2023-2024学年高一上学期期末学科素养水平监测数学试题
解题方法
2 . 已知集合
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf40fbc107ce62d3b8fae433f0c9732.png)
(1)当
时,求
;
(2)若
,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d4f6630dba5ff1450bbe5391119e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf40fbc107ce62d3b8fae433f0c9732.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d19598537de95fa02534b1e9b467d1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
您最近一年使用:0次
2024-03-06更新
|
127次组卷
|
2卷引用:浙江省临平萧山学校2023-2024学年高一上学期期末数学试题
3 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9b90045176369a7e55c22ded70b088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64698ee3ef1cd8783fabd04829a782fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-06更新
|
139次组卷
|
2卷引用:浙江省临平萧山学校2023-2024学年高一上学期期末数学试题
4 . 设
,使得不等式
成立的一个充分不必要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aedc1c8a16e306bcd6e5154f9ed6dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c55eba351ba00b971ca0ea6cd15d374.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知
.
(1)若
,求
;
(2)若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b5dc1b3d707a0a093f37ac890b42d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda922978abb112ea099f28ff9ec1170.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e1e3f082683a7b71438fcc8f5b643e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89138ba1a7051b4d5dc54238f314dc35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知
,关于
的一元二次不等式
的解集中有且仅有3个整数,则
的值不可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd10968900343aaaa158451018166fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5318889c409a850e56a743d550b34e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.13 | B.14 | C.15 | D.16 |
您最近一年使用:0次
名校
解题方法
8 . (1)已知
,若对任意
,都有
,求
的最小值;
(2)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709c7121314576276e4a561aca9558ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a4a82f38d05d5ee55736cce9cb4d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4bfa16454ef318f602eae03ad32ee0.png)
您最近一年使用:0次
名校
9 . 若存在m,
,使得
的解集为
或
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fd51f3449fe1dc7c26249bbee61537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a47884bd5a1684ce880c25e233de46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac2751b2e379847ef0865842a83d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0673e433e1ea9d97d0a5364a081ec46.png)
A.![]() ![]() ![]() |
B.![]() ![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
名校
10 . 若函数
,
(1)若不等式
的解集为
,求
的值;
(2)当
时,求
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875fcdd6203b5d43a6681381e0405e57.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebfdecc7f8089cb23c20d0a93ee1b601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d075c8a35a8ef19fa811d6e7918959b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/736a4eba56de0217916e36996937822a.png)
您最近一年使用:0次