1 . 函数
,若函数
恰有两个不同的零点,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d2845d760ef536b9760c41481bb9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0228712a17f308dae8428e7b1883b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知函数
.
(1)求
的单调区间;
(2)证明:
;
(3)若
,且
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e50ead3dafa710129bd59b727bfd756.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29772ffc1a200fb6cd2283aef27e2874.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea134f599285e3d32d2ab3e7186990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225a93c53ca692b1e0a7c9809bbb5326.png)
您最近一年使用:0次
解题方法
3 . 已知
是等差数列,其公差
大于1,其前
项和为
是等比数列,公比为
,已知
.
(1)求
和
的通项公式;
(2)若正整数
满足
,求证:
不能成等差数列;
(3)记
,求
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791f5f5a4ae7cd3fbb1281572f1d1c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e841621b349ea356e5e1183699afd660.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b511bcbe94aa484c0a067891fbf7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf45fc1d20ec9adb3b25794ac938855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3500b33d0449cb38229a5cfd6b5a6660.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a39193278b7b44f3e508949875d1d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f41be870e84c819362787849770519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a517973606a88148a64e81785c181e.png)
您最近一年使用:0次
4 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)当
时,求函数
的单调区间;
(3)在(2)的条件下,当
时,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e5101ed57406f68a0a9372bbd007a0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(3)在(2)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998485ffeb46a0412ff1a0f814429257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52109b598fb211d3c8ecc3f7718118cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 若函数
恰有两个不同的零点
,且
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6e96b0779def6cd234018f4264f8e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff60eab72de85437e12806474281612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
您最近一年使用:0次
名校
6 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)若
=0,求
的值;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a136afa15ea25aba12111fd15f6340f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d7daa713ad26b1537eb66a0a35db9c.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d0532bf8ea573af0bc5bbda9e52154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08649488c4b6e75ded28491787ef7558.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22385a460e5c54a3736e2eccd185c418.png)
您最近一年使用:0次
2023-10-22更新
|
492次组卷
|
12卷引用:天津市河北区2022届高三下学期总复习质量检测(一)数学试题
天津市河北区2022届高三下学期总复习质量检测(一)数学试题江西省八所重点中学2021届高三4月联考数学(理)试题(已下线)精做06 函数与导数-备战2021年高考数学(理)大题精做(已下线)2021年高考数学(理)押题预测卷(新课标III卷)01(已下线)【新东方】高中数学20210513-003【2021】【高二下】江苏省苏州市第一中学2020-2021学年高二下学期期中数学试题(已下线)专题4.15—导数大题(构造函数证明不等式2)-2022届高三数学一轮复习精讲精练重庆市长寿中学2020-2021学年高二下学期第一次月考数学试题(已下线)专题2.16 导数-不等式的证明-2021年高考数学解答题挑战满分专项训练(新高考地区专用)北京市广渠门中学2024届高三上学期开学考数学试题天津市汇文中学2023-2024学年高三上学期10月月考数学试题北京市海淀实验中学2024届高三上学期10月月考数学试题
名校
解题方法
7 . 已知函数
,
.
(1)讨论函数
的单调区间;
(2)当
时,直线
是曲线
的切线,求
的最小值;
(3)若方程
有两个实数根
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6365876ce2de96a32ca13841a92824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c80e0a0f1b839ec70ed1028c6665a89.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e255b987904e9442668dc3fdc1a6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f02b52c7928235fe5e25b4c5ca4ebc.png)
您最近一年使用:0次
8 . 已知数列
的前
项和
满足
;数列
满足
,
.
(1)求数列
、
的通项公式;
(2)记数列
,
,求
;
(3)记数列
,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/63a26aa4cbbc507eb4743d9c52a94f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899b5b468b1ace24886e6ca71208044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98e33911a29dc2d64ce12b6a573fcfa.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)记数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97a1388157e9ea8bf4305dac1b641c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7399fcd570d1de4057f2059759d18cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724a55bc6fbee2312645791c8b36408a.png)
(3)记数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941297f31a6531c8b34b63d4bb306427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f909a8b6205c03c52b07f19376721b.png)
您最近一年使用:0次
名校
9 . 已知数列
的前
项和为
,
,数列
为等比数列,且
,
分别为数列
第二项和第三项.
(1)求数列
与数列
的通项公式;
(2)若数列
,求数列
的前
项和
;
(3)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/8a29f39b208abece91e5acf117723dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d93c1ae7b22099a5d4c1c4241e5ca18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547886abee1a603e275c6e808fb5b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4523ac93dd85aa7a9ef76d2f71768862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd85b79372dc6e596d465f738c3c300.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d24f2fcb6869fc7c91c1a4de041a723.png)
您最近一年使用:0次
2023-03-13更新
|
2570次组卷
|
4卷引用:天津外国语大学附属外国语学校2022-2023学年高三下学期统练22数学试题
名校
10 . 设椭圆
的右焦点为F,右顶点为A,上顶点为B,已知
.
(1)求椭圆的离心率e;
(2)设直线
与椭圆有唯一公共点M(M在第一象限中),与
轴交于N,
,其中O为坐标原点.
(i)求直线
的斜率;
(ii)若
,求椭圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84838159fe8b5b8a5ace7556e0ed254.png)
(1)求椭圆的离心率e;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9531f1b05a0b88af18596eedff7ced53.png)
(i)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39de5f86fefa9cc0a9ba7ffe6ab964b.png)
您最近一年使用:0次