名校
1 . 已知实数
,
,
满足
,则
的最大值为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f9223bc24df8d429d743692fff7c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115947eee223f9659c25338236b55c90.png)
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名校
2 . 已知
中,边
上的高为
,
为
上一动点,满足
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0347a2dbf5fba623d097cb892fa8946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d831223c3c4ae2ee718118f97a06d6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 设数列
满足
,
,若
且数列
的前
项和为
,则
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6672b832da87660e7919ea3f7d50bf0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bac4b6e74bc72823d31a2fd52856d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.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/a6860decbe10321e6e90e0480ed35dc8.png)
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2024-03-21更新
|
1221次组卷
|
6卷引用:安徽省舒城中学2023-2024学年高二下学期开学考试数学试卷
安徽省舒城中学2023-2024学年高二下学期开学考试数学试卷吉林省长春市绿园区长春市文理高中2023-2024学年高二下学期4月月考数学试题湖北省十一校2024届高三联考考后提升数学模拟训练一湖南省衡阳市衡阳县第一中学2023-2024学年高二下学期4月期中考试数学试题(已下线)第5套 新高考全真模拟卷(二模重组)(已下线)专题3 复杂递推及斐波那契数列相关二阶递推问题【练】(高二期末压轴专项)
4 . 已知分别是椭圆
的左、右焦点,
是
上位于
轴上方的两点,
∥
,且
与
的交点为
.
(1)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a7c9933a5dfe356def3331e2e3c866.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfe1cad1ce47339827ac5047af4647d.png)
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5 . 基本不等式:对于2个正数
,它们的算术平均数不小于它们的几何平均数,即
,当且仅当
时,等号成立.可以推广到一般的情形:对于
个正数
,它们的算术平均数不小于它们的几何平均数,
.当且仅当
时,等号成立.若无穷正项数列
同时满足下列两个性质:①
;②
为单调数列,则称数列
具有性质
.
(1)若
;求数列
的最小项;
(2)若数列
的前
项和为
,判断数列
是否具有性质
,并说明理由;
(3)若
,求证:数列
具有性质
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140564fb2e11f8411e353d2fa73fbee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b2fb1017d5dfe3a300de3e14a71b6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efff8ec14cb242e793afab4468bf2e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2617515e5ce81b3f5d9f4e806b21b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6879960be91ea52297d587e9a014f54a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17fac66473a039bdb47c2a248b0f4854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9bb1963d176a00c82828c93ca0e2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d013861990cf331c82eb453416ae31bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4247739746b8ddf1403541047e8b5580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
名校
解题方法
6 . 已知双曲线
过点
且焦距为10.
(1)求C的方程;
(2)过点
作直线l与双曲线C交于P、Q两点,求直线l斜率的取值范围.
(3)已知点
,E为线段AB上一点,且直线DE交C于G,H两点.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c8091d78595c42d437ff5766431a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a85ffe2f504193f51dc2fc61eea06a8e.png)
(1)求C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0573e2af8a0dc8c6a1c0af067a324f.png)
(3)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef74bdba723e3dcfca93b34e8a1c13fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7988d2a35d85594f7211c56960abca.png)
您最近一年使用:0次
名校
7 . 已知函数其中
.若
在区间
上单调递增,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c32d51145e3ab6eb10c360f1f138e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/562addd76d05a0ea021acc513b282f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
2024-03-06更新
|
963次组卷
|
3卷引用:安徽省宿州市泗县第一中学2023-2024学年高一下学期开学适应性训练数学试题
安徽省宿州市泗县第一中学2023-2024学年高一下学期开学适应性训练数学试题湖北省武汉市部分重点中学2023-2024学年高一下学期4月期中联考数学试题(已下线)第7章:三角函数章末重点题型复习(2)-【帮课堂】(人教B版2019必修第三册)
名校
8 . 已知函数
(其中
为自然对数的底数).
(1)求函数
的单调区间;
(2)若
为两个不相等的实数,且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff48b7c0fb8abf55d67946a22d92c796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0cc202753558c28d925d782b27198a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab89b85849620870fb86eafe559f2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7580a4c6a36b6f94d62fb68b321e865e.png)
您最近一年使用:0次
2024-03-03更新
|
921次组卷
|
6卷引用:安徽省宿州市泗县第一中学2023-2024学年高二下学期开学考试数学试题
安徽省宿州市泗县第一中学2023-2024学年高二下学期开学考试数学试题(已下线)模块一 专题3 导数在研究函数极值和最值中的应用(讲)(已下线)模块一 专题3 《导数在研究函数极值和最值中的应用》(苏教版)(已下线)模块一 专题5 导数在研究函数性质中的应用(2)【高二下人教B版】(已下线)专题7 导数与极值点偏移【练】(已下线)专题09 导数与零点、不等式综合常考题型归类--高二期末考点大串讲(人教B版2019选择性必修第三册)
名校
解题方法
9 . 已知等差数列
的公差
,且
成等比数列,
的前
项和为
,
63,设
,数列
的前
项和为
.
(1)求
的通项公式;
(2)若不等式
对一切
恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea68ba197cb8727562208a44d36e8144.png)
![](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/a63988eaad2535e218516232a5b43da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d7aa0efb91d158f71aa591794ec06c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad0871e4e7684a8f319965b5311d362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d35deacec7a10cdbbc2c88cfc35c4c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-03-01更新
|
475次组卷
|
3卷引用:安徽省部分普通高中2023-2024学年高二下学期春季阶段性检测数学试题
安徽省部分普通高中2023-2024学年高二下学期春季阶段性检测数学试题(已下线)模块四专题4重组综合练(安徽)(8+3+3+5模式)(北师大版高二)广东省广州市华南师范大学附属中学2023-2024学年高二下学期阶段检测(一)数学试题
名校
解题方法
10 . 已知
分别为椭圆
的左、右焦点,过坐标原点
且与坐标轴不重合的直线
与
交于
两点,
轴,垂足为
,直线
与
的另一个交点为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149bd0effc0c1277b9069c59c3566f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8178c63d125ee6235feeb2fc70d02745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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