名校
1 . 某高二学生在参加物理、历史反向学考中,成绩是否取得
等级相互独立,记
为“该学生取得
等级的学考科目数”,其分布列如下表所示,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a0722562d03a0a55a6c63e5d4cc338.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 如图,直角梯形
中,
为线段
(不含端点)上一个动点,设
,对于函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/8c5d9d5b-fee0-4d14-b5ef-833c77740912.png?resizew=115)
(1)当
时,求函数
的值域;
(2)是否存在
,使得函数
有最小值0.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef4fedabccab755ec7a81c657c8b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36068d82c2e0302e96c9f818f03e033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/8c5d9d5b-fee0-4d14-b5ef-833c77740912.png?resizew=115)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2023-04-20更新
|
290次组卷
|
2卷引用:福建省福州市福清港头中学2022-2023学年高二下学期期末质量检查数学试题
解题方法
3 . 我国十四五规划和2035年远景目标明确提出,要“增进民生福祉,不断实现人民对关好生活的向往”.大众旅游时代已经来临,旅游不再是一种奢侈品,已逐渐成为现代人的幸福必品;也不再是传统的走马观花式的“到此一游”,而逐渐转变为一种旅居度假的“生活方式”,“微度假”已成为适合后疫情时代旅游休闲的一种主流模式.如图,某度假村拟在道路的一侧修建一条趣味滑行赛道,赛道的前一部分为曲线
,当
时,该曲线为二次函数图象的一部分,其中顶点为
,且过点
;赛道的后一部分为曲线
,当
时,该曲线为函数
(
,且
)图象的一部分,其中点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/21/efd1739f-885b-4f8b-9405-278f3e72983b.png?resizew=242)
(1)求函数关系式
;
(2)已知点
,函数
,设点Q是曲线
上的任意一点,求线段
长度的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d20e12120d98fe025662a8a74bbd6ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf8f5d8be251bf2848d6d10aa0340f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407417c2fd059a0cbb54f27edb8876bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5372c33d89a517f440796ff6c4828a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1787ac312def79d1fd7d6dbfc0b28f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1a6f8befb5aa46a62d4036e16bffc7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/21/efd1739f-885b-4f8b-9405-278f3e72983b.png?resizew=242)
(1)求函数关系式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f5cc759862450e57cef1d0e508aa5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25b652920b630c9f62e2af4d96a990c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e915b67f8f747698b8b46d37bc453667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
您最近一年使用:0次
解题方法
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9585aa6f1e14ad4f2cc06dbc8ec6d67.png)
,
.
(1)求
的值域;
(2)对![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
,使得
成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9585aa6f1e14ad4f2cc06dbc8ec6d67.png)
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3398932c37180f3fdf6640d00e24ed7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982e24febae110ddc720ad6a22148cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a155b56db11a19dacce7e16daded3d9.png)
您最近一年使用:0次
2023-02-19更新
|
388次组卷
|
2卷引用:福建省漳州市2022-2023学年高一上学期期末教学质量检测数学试题