解题方法
1 . 已知二次函数
满足条件
和
,
(1)求
;
(2)求
在区间
(
)上的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104375baf5cef5eb92cfc7cf13b80193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6007d96afe3c604d1653b2cd281909d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7ef169f00be74020ff6c7c740bf734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
您最近一年使用:0次
2020-10-24更新
|
367次组卷
|
3卷引用:北京市昌平区新学道临川学校2020-2021学年高一上学期第一次月考数学试题
2 . 已知集合
则
=________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702d3b1aa0fb37154a73cef0a54a2322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551fd8cd8ea61d794c13074ccd7d6c4e.png)
您最近一年使用:0次
3 . 已知函数f(x)=
,
(Ⅰ)画出f(x)的图象;
(Ⅱ)写出f(x)的值域及单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222a830dd56d69fd7fc5a417c4dcc099.png)
(Ⅰ)画出f(x)的图象;
(Ⅱ)写出f(x)的值域及单调递增区间.
您最近一年使用:0次
名校
4 . 设集合U={1,2,3,4,5},A={2,4},B={1,2,3},则图中阴影部分所表示的集合是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/6aacdfcc-5a58-4fc1-8c4f-c127387f1770.png?resizew=167)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/15/6aacdfcc-5a58-4fc1-8c4f-c127387f1770.png?resizew=167)
A.{4} | B.{2,4} | C.{4,5} | D.{1,3,4} |
您最近一年使用:0次
2020-10-24更新
|
199次组卷
|
3卷引用:北京市昌平区新学道临川学校2020-2021学年高一上学期第一次月考数学试题
5 . 若函数
,在R上为增函数,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c570d86a94304fc25614d834b12eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 设
,则函数
的值域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7249e417b0a4f276d5e0e8da1b51d08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 若函数f(x)=
,那么f (-3)的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/938a2662c0eeb08befadb33201d3ba9d.png)
A.-2 | B.2 | C.0 | D.1 |
您最近一年使用:0次
20-21高一上·江西南昌·阶段练习
名校
解题方法
8 . 函数
的图象是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbbd9752d00d654cc0d66a28af6421.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
9 . 设集合
,
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992720ee3d035f311c1cd25cb4a98f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af72ba89612d1f1c97b7e503fbe51ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 设集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d7b3872f464e744536d12599f3da55.png)
(1)当
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9b1f0d1e27c70bab1e18aff1e07e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d7b3872f464e744536d12599f3da55.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次