2023高二上·江苏·专题练习
解题方法
1 . 设函数
,函数
的最小值为
.存在
,使
成立,求实数m的取值范围?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44de11721b09701d6d1a52a5b839dfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b36da3b4cc0a0cc408ef324b04c9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21557bcdbe6ff39b4d1bec5787cc220b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc49913caf9a2fed49248845a0d8874.png)
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解题方法
2 . 两个边长为2的正方形
和
各与对方所在平面垂直,
、
分别是对角线
、
上的点,且
.
平面
;
(2)设
,
,求
与
的函数关系式;
(3)求
、
两点间的最短距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015c11c95d7a2dc82dbf1702117cd314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422210c777ac0d625bbd81cc7601bf9b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61c722f99515c03c44a7644045e1c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4914d142641c85ea5454b1eb05ac4204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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2023高二上·全国·专题练习
3 . 若动点P的坐标为
,
,则动点P到原点的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d69d546c7eb5ce8625ad6206cae0770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29aef458f2367b76432719f6f56275d8.png)
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4 . 如图①,在矩形
中,
为边
的中点.将
沿
翻折至
,连接
,得到四棱锥
(如图②),
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/79d34a5a-2936-4062-8ffa-c34b6c19cdab.png?resizew=317)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
面
,并求
的长;
(2)若
,棱
上存在动点
(除端点外),求直线
与面
所成角的正弦值的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdcde01d0b8d46415f598db47a27b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe40405cd7bd60d69dd535d6da85c00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c3cc1f331dbb2248b0829039df7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efeadd146662b5d8fe14a424138ef751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/79d34a5a-2936-4062-8ffa-c34b6c19cdab.png?resizew=317)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6c2dad46a9052a4185a4f7b4ae8a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b58bbc02479917ad761a24eaae0dbfd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf12905647aeeded72bbca21a63f319.png)
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5 . 设函数
.
(1)证明
是偶函数;
(2)指出函数
的单调区间,并说明在各个单调区间上
是增函数还是减函数;
(3)求函数的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b273dab294a02d82d412f920b876267.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)指出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求函数的值域.
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6 . 设B是椭圆C:
的上顶点,点P在C上,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc603fea876cbf85b1efcb5bab0d500f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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23-24高二·全国·假期作业
7 . 已知
是
轴上的动点,当
时,点
的坐标为___________ ;当
取最小值时,点
的坐标为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8705fccb5c7a3134fa72430e5b8c8a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856e5c4655646d8df95e9770552388c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811f2b0933367b7cb32a7696510f2089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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23-24高二上·山东德州·期中
解题方法
8 . 已知圆
与圆
的公共弦所在直线恒过点
,则点
坐标为______ ;
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13600c47bb642246f50a95f0fe4b49b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fd40697ab291dc6891d71dfe4ededc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66190e412f9199293f8d6e0c5bc6abc6.png)
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9 . 已知扇形OPQ中,半径
,圆心角为
,若要在扇形上截取一个面积为1的矩形ABCD,且一条边在扇形的一条半径上,如图所示,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176754726d2194c890e80df1a1f1c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7f86c01dc112967f375c7fb116aa60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/3d9f8446-fd1f-43db-8939-52448777eb53.png?resizew=162)
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2023-11-23更新
|
287次组卷
|
2卷引用:浙江省9+1高中联盟2023-2024学年高二上学期期中考试数学试题
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10 . 已知函数
的图象过定点
,则函数
在区间
上的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0dd52d10adf816c7bd8efa9b39f760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f51f43990e57810bde04dfc9064cb4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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