名校
1 . 已知函数
,
,其中
…为自然对数的底数.
(1)当
时,若过点
与函数
相切的直线有两条,求
的取值范围;
(2)若
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b3fc8ffb451291df0e72b5d9456eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ec0983458f6f31361640afd890cc2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0adfa58467df21fa13761f4d4aa462fe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211aa10d6d9b714e415cefcc6169f2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff295312255e64bfbce36f75a6459914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790b46a94054fee60cbc4cd9e09ed5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf84b70603802c69bdb5de2f6fe3a66.png)
您最近一年使用:0次
2022-01-24更新
|
685次组卷
|
2卷引用:山东省菏泽市菏泽第一中学2021-2022学年高二下学期4月月考数学试题
2 . 已知函数
,其中
且
.
(1)设
,过点
作曲线
的切线(斜率存在),求切线的斜率;
(2)证明:当
或
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b8607b7b3f07c4c40949b555913801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cdd7f1548b32d1923a244f87440685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eefffa1689b5a68786b9a5875f12c0e.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110a4630049f9970b02216728bba4e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ef0e5691f88dbc65e4e9d7d9cdfbbe.png)
您最近一年使用:0次
名校
3 . 设函数
,
,其中
为实数.
(1)若
在
处的切线方程为
,求实数
的值;
(2)若
在
上是单调增函数,试求
的零点个数,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6431a968969832c390b8bc1ad4084788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6118678716e140a24bd2262176a3303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8a3365e99f926b1dafa901ab232152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86135bd40536042536c1c7bed21d0171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae43c2122b8813620178b63818f856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
您最近一年使用:0次
4 . 已知
,函数
,
.
(1)讨论
的单调性;
(2)过原点分别作曲线
和
的切线
和
,求证:存在
,使得切线
和
的斜率互为倒数;
(3)若函数
的图象与
轴交于两点
,
,且
.设
,其中常数
、
满足条件
,
,试判断函数
在点
处的切线斜率的正负,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7600c9a7de088a9f88bf0447e22d0bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4abdb0052a30184ec7bdc7e4fbd3922c.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)过原点分别作曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.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/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34c89383005bfac28c6275a2066812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c4c4da64a6032e6d70d01bf4221ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096acdd2d0ce16e1e45397ec5e365d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa3cf236e5419c342822f491f1afdc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4e432770f6b6ec7e90e15ff596cfda.png)
您最近一年使用:0次
2021-11-23更新
|
1091次组卷
|
6卷引用:山东省潍坊市2021-2022学年高三上学期期中数学试题
山东省潍坊市2021-2022学年高三上学期期中数学试题山东省菏泽市菏泽一中八一路校区2024届高三上学期11月月考数学试题湖南省衡阳市第八中学2021-2022学年高三上学期第五次月考数学试题(已下线)收官卷04--备战2022年高考数学一轮复习收官卷(新高考地区专用)安徽省合肥市第一中学2022届高三下学期素养拓展2理科数学试题(已下线)高二数学下学期期中精选50题(压轴版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)
5 . 已知函数
.
(1)当
时,求函数
在点
处的切线方程;
(2)当
时,曲线
上存在分别以
和
为切点的两条互相平行的切线,若
恒成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59560924a9637f966325e52e50ac549.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45dddee525114c09ee0d1205aed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3b54e0dcdc081d45fb3df933cddc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87787d037d226068a19ecc1a4b1b2443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54198236eb051239e43b2c5d36134f5b.png)
您最近一年使用:0次
解题方法
6 . 已知函数
,曲线
在点
处的切线方程为
.
(1)求
,
的值;
(2)证明:
;
(3)若函数
有两个零点
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7ba0cacd13720ed00392d99be5a2a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7b5e991ef6727b014f766e306b0cea.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cf3c57d382c939f9aef06d2931b889.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a365d163830ffd64cba1f227e121bdf1.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/b1f52f9a57a1e434d679c294503a69d9.png)
您最近一年使用:0次
7 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72072b47cd66cbe351e8498923288cbc.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e2302295333e96f24e328bc4e1f9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7091d529281abff275ef19b9197445a7.png)
您最近一年使用:0次
名校
8 . 已知函数
.
(1)求曲线
处的切线方程;
(2)若方程
有两个实根
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684bcf84f0a266515bfafde0da903050.png)
(I)求m的取值范围;
(Ⅱ)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7ed99a74e126a05cb520f19c094020.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efdc1c630212186b83500ed47ecb8be.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684bcf84f0a266515bfafde0da903050.png)
(I)求m的取值范围;
(Ⅱ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3668b69fc0fa8d78517e118f53aa87d.png)
您最近一年使用:0次
2022-01-29更新
|
865次组卷
|
3卷引用:山东省青岛市2021-2022学年高三上学期期末数学试题
名校
9 . 已知
,
.
(1)求
在
处的切线方程;
(2)已知
的两个零点为
,且
为
的唯一极值点.
①求实数
的取值范围;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b69a910e5fca99e1dd907e8fae2a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1da3054248314e83b006bc210a5d3d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98fcb9b8c4217901cb5a5b2df1cd8ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04ddd92ea0665845393e47f4b4a7679.png)
您最近一年使用:0次
10 . 已知函数
,其中
…为自然对数的底数.
(1)若函数
在
处的切线与直线
垂直,求函数
在
处的切线方程.
(2)若对任意的
,
恒成立.
(i)求实数
的取值范围;
(ii)若函数
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0de943df08c0ad6bc565b5231989f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/872f7b170d31d1d464aba4f99e370721.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18feaed4f3dd7698210ba302c81dca6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/968d720c2e8215851f6db0d821037c8d.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225050a7d7e129932a57731eda4f1a7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea7dde106b744f639a7be5869f762c8.png)
您最近一年使用:0次
2021-09-04更新
|
606次组卷
|
3卷引用:山东济南十一校2021届高三4月诊断联考数学试题
山东济南十一校2021届高三4月诊断联考数学试题(已下线)第四章 导数专练13—与三角函数相结合的问题(1)-2022届高三数学一轮复习浙江省学军中学紫金港校区、海创园校区2021-2022学年高二下学期期中数学试题