名校
1 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)当
时,求函数
的单调区间;
(2)设函数
,
,若对于曲线
上的任意点
,在曲线
上仅存在唯一的点
(异于点
),使曲线
在
,
处的切线的交点在
轴上,求正整数
的最小值.
(参考数据:
,
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72c209a41cfdf3204f83982b21e8dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e22112ad03cddf33b87c22497a502a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9d9ab0936d3d53c2447ca5c3745ada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6334e30eb6ff2f4ceff9e695c1d1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16552a1b3198b61e02f62592431cb583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209c4739ab13d678d47d8a4d4d7c94f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ccc7a1115f339befede8648ddb09648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0f14e23582cef2d242b86f0710d13b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6467df2da947cabee499aee4ffb4ca18.png)
您最近一年使用:0次
2022-10-16更新
|
531次组卷
|
2卷引用:重庆市南开中学2023届高三上学期第二次质量检测数学试题
名校
2 . 已知函数
.
(1)当
时,讨论
的单调性
(2)证明:
有唯一极值点t,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0571f1bbd6076e20c9cd91c9b777b425.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
您最近一年使用:0次
名校
3 . 已知函数
(
为正有理数).
(1)求函数
的单调区间;
(2)证明: 当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d378d8057b4a1c2bcec39d70a56e184d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5323f3e8164a6c2c865377d168e2cbf1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明: 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd699e5a3a2d8f5d9d5888383a12e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cb72814fc154c01ff58d865e8a9b50.png)
您最近一年使用:0次
2022-10-06更新
|
688次组卷
|
2卷引用:湖南省长沙市雅礼中学2022-2023学年高三上学期月考(二)数学试题
4 . 已知函数
,
,
.
(1)若
在
存在极小值点,求
的取值范围;
(2)若函数
有3个零点
,
,
(
),求证:
①
;
②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63058af7d2cebd31923695c202b5f1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dba7294809f75ea3ac666b709f71b4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848c33e3506416358d9f0d3ee66f67a9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65356f586eea8b1a0e18b0c1ee107852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ff16773bd63036c8c881d8417ab555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3551ac437add8a9d19e141adf9e9df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12a4eecd249473a831d0ee472470240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9565876bc50bceb63e5793c8c67a9032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec13d0c7a2f811a742d7e89960c5fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8567c0348e755bc0542cac37f3522d7.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8adbad2beab443a8607d6ac9215daf.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188acc69b31f8d4376cbacb084a2e945.png)
您最近一年使用:0次
名校
5 . 已知函数
,
.
(1)记
,当
时,求
的单调区间.
(2)若关于x的方程
有两个不相等的实数根
,
.
①求实数a的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78b72e777c37963f7c48aa27a21ccdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2294bf0b10d85236ca70aa7f6e52103.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d22b4beb798f9b1b12b9036e725f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求实数a的取值范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475c9073257b3d0760e2c6051a82d592.png)
您最近一年使用:0次
名校
6 . 已知
,
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba90963f450c60595b022da7a1df523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22030adb0ee58f913058bae73fc153bc.png)
您最近一年使用:0次
2022-09-23更新
|
698次组卷
|
2卷引用:THUSSAT中学生标准学术能力2022-2023年度高三诊断性测试9月测试数学(理科)试题
名校
7 . 设函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
时,求函数
的单调增区间;
(2)若函数
在区间
上为减函数,求
的取值范围;
(3)若函数在区间
内存在两个极值点
,
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c724e0478a372f71eda478adace8061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526142a22d148ae07a8f0a846e851241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.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/8480e2fbff1b8efc33f593b6029d8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-02-01更新
|
808次组卷
|
6卷引用:北京市海淀区2022届高三上学期期中练习数学试题
8 . 已知函数
在x=e处的切线方程是y=e
(1)求函数
的单调区间;
(2)若x1,x2∈(1,+∞),且
,证明:2e<x1+x2<2e+1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82212d821734b6f02cc9206e480f15f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若x1,x2∈(1,+∞),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2037b0bad7c7a312bac1ac0653d9a491.png)
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9 . 已知函数
.
(1)求
的单调区间;
(2)证明:
有且仅有两个实根,且两个实根互为相反数;
(3)证明:存在两条直线
,
,使
,
既是曲线
的切线,也是曲线
的切线,且
,
斜率之积为1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49aa895ed58b18e19391772f17f804ed.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9e7131919449b3d2ebad852a1d78ff.png)
(3)证明:存在两条直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61734d9d35b01edec7771a6fb96903b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10cc2650e45ac8130d66265911588547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b79477a3ea39afb0b0a355da63450c6.png)
(1)若
,求函数
的单调区间;
(2)若任意
,
, 求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b79477a3ea39afb0b0a355da63450c6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ce7ced323d3864bffd50238934659c.png)
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