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1 . 若直线
与曲线
有公共点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c46384f1397b7b2e15c7419b093132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38938d4e4dd462fc38b9a3781695762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-02-13更新
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634次组卷
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3卷引用:重庆市求精中学2022届高三上学期一诊模拟数学试题
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解题方法
2 . 已知全集
,集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a5e17319bf1b3090640d5ecc7dbbf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96037f23f824b59eacba1c6bdf2de16f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822da790e7d5bc728f5afc7ef6f7ae6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa593a49c5433f8c0262a5acf30b2f8b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 下列命题中,正确的有( )
A.线性回归直线![]() ![]() |
B.若平面![]() ![]() ![]() ![]() ![]() ![]() |
C.“若![]() ![]() |
D.若![]() ![]() |
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4 . 已知函数
,其中
.
(1)当
时,求函数
在
处的切线方程;
(2)若函数
在
上恰有两个极小值点
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2976a990bf70b51f03a6172b9f90f6e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2e6e24e9cb9e61ca4adbfa2c32b383.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a2ec02caf837c6e7e0b76dd9acc7f0.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9845c78cb0cdedddefb2c0309a86e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-02-11更新
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2卷引用:重庆市求精中学2022届高三上学期一诊模拟数学试题
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5 . 若
,且
为第二象限角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b6dcb7f81b2f58283524598e4a1cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
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解题方法
6 . 设数列
,其前
项和
,
为单调递增的等比数列,
,
.
(1)求数列
,
的通项公式;
(2)若
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5085e5f2918843723ac5fa3ba91ec36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89b2d40598a899ed515748dd4a2f21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b3803284e673091aa20359127b9a5e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dacf1018500d1d8276688491e41bd3a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c88a7ef007c78a93e33bd77c4396626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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解题方法
7 . 如图,在三棱柱
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/a4e8a5cc-b155-4a6c-946e-b01bdc1a8945.png?resizew=165)
(1)求证:
;
(2)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca248c05ba166ac40d795f8481459ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783fc17e7381a5006945061a0782a063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685534ba47e83433200ce29660875118.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/a4e8a5cc-b155-4a6c-946e-b01bdc1a8945.png?resizew=165)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba985fb50a9078a839b66bf1d1eadea9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dd50b387a70c78d2db978ef6811f0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7be039164786f40fac2a174b6182b1d.png)
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2022-02-11更新
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2卷引用:重庆市求精中学2022届高三上学期一诊模拟数学试题
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解题方法
8 . 在二项式
的展开式中,记二项式系数和为A,各项系数和为B,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8647b84bfbc7d827f56be74888b9fdb6.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cbb054764cf63615a5efdcd7797f37d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8647b84bfbc7d827f56be74888b9fdb6.png)
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9 . 设
是无穷数列,若存在正整数k,使得对任意
,均有
,则称
是间隔递增数列,k是
的间隔数.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c39b984e70553acb2da1012e26ba36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43cf3af8a9f87980d3b663fd9659c49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.公比大于1的等比数列一定是间隔递增数列 |
B.已知![]() ![]() |
C.已知![]() ![]() |
D.已知![]() ![]() ![]() |
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2021-11-26更新
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1562次组卷
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6卷引用:重庆市求精中学2022届高三上学期一诊模拟数学试题
重庆市求精中学2022届高三上学期一诊模拟数学试题(已下线)热点07 数列与不等式-2022年高考数学【热点·重点·难点】专练(新高考专用)(已下线)专题13 数列的性质必刷小题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)山东省实验中学2021-2022学年高三上学期第二次诊断考试数学试题(已下线)第36练 数列的概念1.1数列检测题 B卷(综合提升)
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解题方法
10 . 已知函数
是定义在
上的奇函数,且
为偶函数,当
时,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe17821ea81c6fec60bd5273901bd50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2021-11-12更新
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1576次组卷
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6卷引用:重庆市求精中学2022届高三上学期一诊模拟数学试题