名校
解题方法
1 . 集合
的真子集个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7a29b1ae1ecdf9705c223b5de209d71.png)
A.7 | B.8 | C.15 | D.16 |
您最近一年使用:0次
2023-09-13更新
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373次组卷
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3卷引用:重庆市第一中学2024届高三上学期开学考试数学试题
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2 . 已知正方体
的棱长为2,设
分别为棱
的中点.
(1)证明:
平面
;
(2)求二面角
的平面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d426a84258d99282df25c0216777545.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/15/5b9f3f78-fe0a-4e41-87be-0bc6a2916d9c.png?resizew=143)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665fa0f8a5c8060bc8d3ba7aadd0dddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a7ba7cd0c654714c967a900513ba16.png)
您最近一年使用:0次
2023-09-13更新
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596次组卷
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2卷引用:重庆市第一中学2024届高三上学期开学考试数学试题
名校
解题方法
3 . 已知函数
.
(1)设
,经过点
作函数
图像的切线,求切线的方程;
(2)若函数
有极大值,无最大值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d701d4173fad32473e11a514cedade.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 已知
是定义在
上的奇函数.
,且当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd42155a92d81bd1b090675b93b26ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bbc62c76daac391ddc4ce2d6078948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c96598bc6962a7b344a3c7fea2289c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1851882190b12e39df6da933545b77.png)
A.0 | B.![]() | C.1 | D.2 |
您最近一年使用:0次
2023-09-13更新
|
798次组卷
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2卷引用:重庆市第一中学2024届高三上学期开学考试数学试题
名校
解题方法
5 . 若随机变量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df82cb1f47c4bca5f39ea1a2e5aea4f4.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6488755bf1ed2024000bca9f5c5fa531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa08148ee025917c2f1c0b2aa32758b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df82cb1f47c4bca5f39ea1a2e5aea4f4.png)
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6 . 一组数据按从小到大的顺序排列如下:
,经计算,该组数据中位数是16,若
分位数是20,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afac348af893574529e937e86fa4a908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b140062c06ce287ca862555287e3d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
A.33 | B.34 | C.35 | D.36 |
您最近一年使用:0次
2023-09-13更新
|
710次组卷
|
4卷引用:重庆市第一中学2024届高三上学期开学考试数学试题
名校
解题方法
7 . 设等差数列
的前
项之和为
,且满足:
.
(1)求
的通项公式;
(2)设
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba590bdc527f0cbfe5ea25eced8ac5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea451369913dd8fd4945fe54ba1d2646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4d3cf6c6d56b6faa6d9f036f119a97f.png)
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解题方法
8 . 已知
、
分别为定义域为
的偶函数和奇函数,且
.
(1)求
的单调区间;
(2)对任意实数
均有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df412ae6aa217d7eaa8dd3b88faa9b04.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3adc74aa616a3285e227920c2108bc9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-09-13更新
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660次组卷
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3卷引用:重庆市第一中学2024届高三上学期开学考试数学试题
名校
解题方法
9 . 已知椭圆
的左顶点为
,上顶点为
,右焦点为
,设
为坐标原点,线段
的中点为
,且满足
.
(1)求椭圆
的标准方程;
(2)设点
,圆
过
且交直线
于
两点,直线
分别交
于另一点
(异于点
).证明:直线
过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5fa2bb949753445dff343e48283dbab.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac0df5a1bd33cbf8c816f7973e1a434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d42cb68c5c877a455ba7ac0a6b6a651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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解题方法
10 . 已知函数
定义域为
,
,且满足
,其中
为
的导函数,若不等式
恒成立,则正实数
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec2cdfedd4fc22a0551a0723ccfeb4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d77d3d73d69cb50cf5e4a1bc0fb834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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