1 . 已知函数
.
(1)若直线l过点
,并且与曲线
相切,求直线l的方程;
(2)设函数
在
上有且只有一个零点,其中
,e为自然对数的底数,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
(1)若直线l过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ed712c13740c2c456f0668e3f931ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47e734b17201fe992be7775714e9558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
您最近一年使用:0次
2022-02-13更新
|
587次组卷
|
2卷引用:四川省成都市石室中学2021-2022学年高三上学期专家联测卷(二)数学(理)试题
2021·全国·模拟预测
名校
2 . 已知函数
(
)有两个不同的极值点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8923affba77d55b330a58dd208d84b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
A.若![]() ![]() ![]() |
B.函数![]() ![]() |
C.实数a的取值范围为![]() |
D.若函数![]() ![]() ![]() |
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名校
解题方法
3 . 若函数
与函数
存在经过点(1,0)的公切线
,则实数
的值为______ ,公切线
恒在函数
图象的上方,则整数
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61e3ff73097a54f8a5fcfc45737db03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5befe145a8dc79da5276f33887f60ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-09-07更新
|
929次组卷
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2卷引用:2021届高三数学临考冲刺原创卷(六)
名校
4 . 已知
,
(1)求
在
处的切线方程以及
的单调性;
(2)令
,若
有两个零点分别为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
且
为
唯一极值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc98c4598df849926107651af046548.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edbc063cf84c5e76ad9e2cbdf6325ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.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/dd8c8fa3336aaaea3c48f9245b135022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04ddd92ea0665845393e47f4b4a7679.png)
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2021-08-12更新
|
1338次组卷
|
5卷引用:重庆市第七中学2021届高三下学期高考仿真模拟数学试题
重庆市第七中学2021届高三下学期高考仿真模拟数学试题(已下线)专题21 导数及其应用(解答题)-备战2022年高考数学(理)母题题源解密(全国甲卷)(已下线)专题20 导数及其应用(解答题)-备战2022年高考数学(文)母题题源解密(全国甲卷)(已下线)专题14 导数综合应用的解题模板-学会解题之高三数学万能解题模板【2022版】(已下线)专题3-7 导数压轴大题归类:不等式证明归类(2)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)
解题方法
5 . 已知函数
(其中
为实数).
(1)若曲线
在点
处的切线方程为
,求a,b的值;
(2)当
时,若
恒成立,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6df798b2c4fd1656dcc72d6697c7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff402ceab1882bf02ff10253b869e6ef.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53ea77f7ae7a0a3521988ca05302b82.png)
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解题方法
6 . 已知函数
.
(1)当a=2时,求曲线f(x)在点
处的切线方程;
(2)若关于x的不等式
在[1,+∞)上有实数解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d659c96c430f95651cb802e0010bcfc5.png)
(1)当a=2时,求曲线f(x)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23ad5b0a0b62edc33467796385a6892.png)
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7 . 设
为定点,
是抛物线
:
上的一点,若抛物线在
处的切线恰好与
,
两点的连线互相垂直,则称点
为点
的“
伴点”.
(1)求抛物线
的焦点
的“
伴点”;
(2)设
,问:当且仅当
,
满足什么条件时,点
有三个“
伴点”?试证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e0db273061d0331e4e5da9ff1e955e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4ff0af96ea467337cb30c4c765b5f7.png)
您最近一年使用:0次
解题方法
8 . 已知函数
.
(1)求
在点
处的切线方程;
(2)若方程
有两个实根
,且
,证明;
时,
.(注∶e为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a26f3341c78d51f60a5ac57eeaa5a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c36300180be6ee56f4345157fa723a.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5809a06357f94fc7a2156c7e7af1ed2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bdd632a4ac64e56262d92a0593ffcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132f835c340c2aa56a61e6c50c9f3fd2.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)若
,求曲线
在点
处的切线方程;
(2)若
求证:当
时,
;
(3)若对任意的实数
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046398d7f486c9229f22be479f18ccc9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(3)若对任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aedcea90812f2ea1f4e08b7e6baf4a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
10 . 已知函数
,其中
.
(1)若曲线
在
处的切线与直线
平行,求a的值.
(2)若函数
在定义域内单调递减,求a的取值范围.
(3)若不等式
对
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6aa7c01df41e4ac8983494de378658a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c21ab40ef86e0f4c996da62ecbbef7.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c6c9feb4963534e06d9afde738ccb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
您最近一年使用:0次