1 . 求下列函数的定义域
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813210eeb39fb832bc7f5ad15d9eeaf5.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1593ca07d053bf041a6019be826b327.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813210eeb39fb832bc7f5ad15d9eeaf5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1593ca07d053bf041a6019be826b327.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b113ba6d2c71eceea94cf193d4b57d.png)
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2 . 已知数列
的前
项和为
,
.
(1)证时:
为等比数列.
(2)求数列
的前
项和
.
![](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/826292ed4c202be62b1918088a2e9267.png)
(1)证时:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38a666f2c61d67089441cb7e3d3f5fa.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846fa57d92d6ad44d6a0cafad1e71ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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3 . 已知抛物线
:
.
(1)过抛物线的焦点,且斜率为
的直线
交抛物线
于
,
两点,求
;
(2)直线
过点
且与抛物线交于
,
两点,过
,
分别作抛物线的切线,这两条切线交于点
.证明:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(1)过抛物线的焦点,且斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/2401bc9c26cc3b0b8384c7139bd58fff.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96499747e4aea990f4b878eea8d73ab7.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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3卷引用:新疆乌鲁木齐市第四中学2023-2024学年高二上学期(期末)阶段性诊断测试数学试题
名校
4 . 若
是不等于
的实数,我们把
称为
的差倒数,如
的差倒数是
.现已知
,
的差倒数是
,
的差倒数是
,
以此类推,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ccc91de52641ad13f3ba1711e8b5e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2285398ccaf5938e14ac55e182c494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195fc747e2fc50cb6df2c844d51e4d80.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/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16231e127f8a00b343c1986f65f0ab56.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 在平面直角坐标系中,已知椭圆
的离心率为
,且
过点
.
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e298293515d3c5d8343b668fe8541d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66062b4e4bd7cae3aa5873c246b7df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2卷引用:新疆维吾尔自治区阿克苏地区第一中学2023-2024学年高二上学期期末数学试题
解题方法
6 . 已知双曲线
的左焦点为
,
为坐标原点,过
的直线与双曲线的两条渐近线分别交于
、
两点,且
,
,
,则双曲线
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/8af003e88701132d5db7a5e78ac1715b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea600ec98cd1e1162252b965ce596f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30d44b7b6271ce083b7442cd70bbed56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.2 | C.![]() | D.![]() |
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4卷引用:新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题
新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题四川省宜宾市第六中学校2024届高三上学期期末数学(理)试题(已下线)2024年高考数学全真模拟卷04(已下线)专题8.3 双曲线综合【九大题型】(举一反三)(新高考专用)-1
名校
解题方法
7 . 若
的展开式中常数项为
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0367ae773ae2fdfbd9102257dfa1c1ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b4cc0ef850fb0fcd51ea490f4f8c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94eb08f203de02a5c6bf8a4f93be9bb.png)
A.1 | B.2 | C.3 | D.4 |
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5卷引用:新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题
新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题(已下线)第2讲:不等式的解法与性质、基本不等式【讲】(已下线)第04讲 6.3.1二项式定理+6.3.2二项式系数的性质(4)湖南省衡阳市第八中学2024届高三下学期模拟预测数学试题(已下线)计数原理与二项式定理-综合测试卷A卷
解题方法
8 . 已知函数
在定义域内单调递增,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbbfc163b13e50d8bb8444ac39fe352f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 已知任一随机变量
,若其数学期望
,方差
均存在,则对任意的正实数
,有
,即表示事件“
”的概率下限估计值为
.现有随机变量
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf3baba074e8aeb6f3ea117865bbd1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a0722562d03a0a55a6c63e5d4cc338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d11d0eb3b11098c838e3bea7c59e3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b779f68048a8c13b1dcd2fb2b7a2ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfb7c3501bdd3209ce44690d05f69a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d273c0213d06f79a59e799ee9a534f4c.png)
A.若![]() ![]() |
B.![]() |
C.若![]() ![]() ![]() ![]() |
D.若有不低于![]() ![]() ![]() |
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解题方法
10 . 在锐角
中,
的对应边分别是
,且
.
(1)求
的取值范围;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b27211caf664793cb3fab60f16e922.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e563e032dfdef69b0f357060c27bd4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc3cd5be6672b548534038b428932d9.png)
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4卷引用:新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题
新疆维吾尔自治区慕华·优策2023-2024学年高三上学期第一次联考数学试题河南省南阳市第一中学校2024届高三上学期期末模拟数学试题湖北省武汉市马房山中学2024届高三上学期期末综合测评数学试题(已下线)专题1.11解三角形常考大题归类-重难点突破及混淆易错规避(人教A版2019必修第二册)