1 . 已知
,a为函数
的极值点,直线l过点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
的解析式及单调区间:
(2)证明:直线l与曲线
交于另一点C:
(3)若
,求n.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564a3336ddeba347978fee32ffb16631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc0021f960dba2b8860d09d9bf26872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad344f3b6676f6e821cb687ba522268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)证明:直线l与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978068ab8189f54a3365be8d73280f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cffb0685e90e8d603813673a8f0801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513da43c5b2cbc26d9d53ab32274d3f7.png)
您最近一年使用:0次
2 . 在正项等比数列
中,
.
(1)求
的通项公式:
(2)已知函数
,数列
满足:
.
(i)求证:数列
为等差数列,并求
的通项公式
(ii)设
,证明:
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963be18b37690c2a4cebefad320b1aaf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e688cc3939a9422a6433a0dc23d2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0060ba7c94a156f968c7e3dd7dc34975.png)
(i)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51da505ea6ab5a3f92e459c311304e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
(ii)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831de7531e4b51f836a5ef44c4791198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5475fe99ef8eb84ab937f54ac9cdcc75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c46b33730f3a29b9ec3024df71375.png)
您最近一年使用:0次
名校
3 . 已知函数
,
(
为自然对数的底数)
(1)当
时,求
的单调区间;
(2)
时,若函数
与
的图象有且仅有一个公共点.
(i)求实数
的集合;
(ii)设经过点
有且仅有3条直线与函数
的图象相切,求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3392ab5afdbd80d316d4fd003920659a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5e80cdc7476f04bcc62813fa187446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)设经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f00fdb0b1dfb21a2e192990b79be37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cdfaf0771d0dbe55309ad4640b143f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bb2da696e961d4e7c289691aa4ce9c.png)
您最近一年使用:0次
4 . 已知过点
的椭圆
的离心率为
. 如图所示,过椭圆右焦点
的直线(不与
轴重合)与椭圆
相交于
两点,直线
与
轴相交于点
,过点A作
,垂足为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/4/e71bbf22-df3d-46eb-ad78-cfa8ac99b688.png?resizew=239)
(1)求四边形
为坐标原点
的面积的最大值;
(2)求证:直线
过定点
,并求出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aab4789a1772160dbece17f023315c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdbd8a5d973b7a54b7605388fdcfbb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b505788d3d02bf232ac637fc3a8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/4/e71bbf22-df3d-46eb-ad78-cfa8ac99b688.png?resizew=239)
(1)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3452092abab93b2ee5e87125a4670c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
2023-03-02更新
|
978次组卷
|
3卷引用:天津市南开中学2023届高三统练24数学试题
名校
5 . 已知函数
.
(1)讨论
的单调性;
(2)若
有两个零点,求
的取值范围;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1992673f2428acad25b02245ce76d589.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f282f2194d01cbeb220569de607d7c7.png)
您最近一年使用:0次
2022-05-31更新
|
1394次组卷
|
3卷引用:天津市南开中学2022届高三下学期高考前热身练习数学试题
名校
解题方法
6 . 已知函数
在点(
,
)处的切线方程为
.
(1)求a、b;
(2)设曲线y=f(x)与x轴负半轴的交点为P,曲线在点P处的切线方程为y=h(x),求证:对于任意的实数x,都有f(x)≥h(x);
(3)若关于
的方程
有两个实数根
、
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32eaaee345fb3c2941c1700f51ac094d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0c949fc6c21dd3e7d3f56c97ad8715.png)
(1)求a、b;
(2)设曲线y=f(x)与x轴负半轴的交点为P,曲线在点P处的切线方程为y=h(x),求证:对于任意的实数x,都有f(x)≥h(x);
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43ee69053dce7e1c0fde08668389b42.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32cda68b4b1a524acf26e5eb623373b5.png)
您最近一年使用:0次
2022-03-29更新
|
3218次组卷
|
8卷引用:天津市南开中学2022届高三下学期二模数学试题
(已下线)天津市南开中学2022届高三下学期二模数学试题天津市耀华中学2022届高三下学期统练12数学试题天津市南开中学2019-2020学年高三10月月考数学试题天津市第一中学2020-2021学年高三上学期第三次月考数学试题(已下线)第12讲 双变量不等式:剪刀模型-突破2022年新高考数学导数压轴解答题精选精练(已下线)第29讲 割线法证明零点差大于某值,切线法证明零点差小于某值-突破2022年新高考数学导数压轴解答题精选精练(已下线)专题9:双变量问题(已下线)重难点突破06 双变量问题(六大题型)
解题方法
7 . 设函数f(x)
.
(1)若x=1是函数f(x)的一个极值点,求k的值及f(x)单调区间;
(2)设g(x)=(x+1)ln(x+1)+f(x),若g(x)在[0,+∞)上是单调增函数,求实数k的取值范围;
(3)证明:当p>0,q>0及m<n(m,n∈N*)时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dfd4e49bff350da7f6145208cff0ce.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48434b8ae9598bf36a5d1fdd2c772d8.png)
(1)若x=1是函数f(x)的一个极值点,求k的值及f(x)单调区间;
(2)设g(x)=(x+1)ln(x+1)+f(x),若g(x)在[0,+∞)上是单调增函数,求实数k的取值范围;
(3)证明:当p>0,q>0及m<n(m,n∈N*)时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dfd4e49bff350da7f6145208cff0ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f40d0b3b4ed66f8a0c3386efb54e6d9.png)
您最近一年使用:0次
8 . 已知函数
,其中
.
(Ⅰ)若曲线
在点
处的切线方程为
,其中
是自然对数的底数,求
的值:
(Ⅱ)若函数
是
内的减函数,求正数
的取值范围;
(Ⅲ)若方程
无实数根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e495165a77634ccb58af50f37cba3a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(Ⅰ)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ffeb2e82278491407c85dc15eb7df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66aeff59d357e109422434b58f3e4895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d218992d1942266d7208e476d0c4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅲ)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
9 . 已知点
是椭圆
的右焦点,过点
的直线
交椭圆于
两点,当直线
过
的下顶点时,
的斜率为
,当直线
垂直于
的长轴时,
的面积为
.
(Ⅰ)求椭圆
的标准方程;
(Ⅱ)当
时,求直线
的方程;
(Ⅲ)若直线
上存在点
满足
成等比数列,且点
在椭圆外,证明:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98214cac757430c9d5775ad0dadb185a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.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/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ebde58ddedcd6c53580d41dd5dbd0cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅲ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e35b1c1dffbaccc72196ed21a0cea04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2020-05-11更新
|
1616次组卷
|
5卷引用:2020届天津市南开区高考一模数学试题
2020届天津市南开区高考一模数学试题江苏省扬州中学2020-2021学年高二上学期期中数学试题黑龙江省哈尔滨市第九中学2020-2021学年度高二上学期期末考试数学(文)试题(已下线)高二上学期期末综合测试一+(B卷提升卷)-2020-2021学年高二数学上学期同步单元AB卷(苏教版,新课改地区专用)(已下线)3.1 椭圆-2021-2022学年高二数学尖子生同步培优题典(人教A版2019选择性必修第一册)
名校
10 . 在平面四边形
中,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37417020f1b3df2f31638b25b5ef0ef.png)
_____ ;若
为边
上一动点,当
取最小值时,则
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2a696b84492a736c5b444e61b7ad96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7d9a6993edefd0f6b25f09fa18aa10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6183f3c4a98b05cbf2228d06bd11e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37417020f1b3df2f31638b25b5ef0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0762d01cd5eb072cc60e364e13482a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe020f2d372f3bf21c9ef5c71895132c.png)
您最近一年使用:0次
2020-05-11更新
|
2955次组卷
|
8卷引用:2020届天津市南开区高考一模数学试题
2020届天津市南开区高考一模数学试题浙江省2022届高三下学期高考冲刺卷(一)数学试题天津市南开中学2021-2022学年高一下学期期末数学试题天津市滨海新区塘沽第一中学2023届高三下学期十二校联考(一)数学模拟试题天津市河西区2023届高三三模数学试题天津市滨海新区塘沽第一中学2022-2023学年高三上学期第一次月考(线下)数学试题天津市新华中学2023届高三下学期统练4数学试题(已下线)高一下学期期末真题精选(易错60题20个考点专练)-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)