名校
1 . 已知函数
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56f39b8b96ae137d8bce6e298057e71.png)
A.当![]() ![]() |
B.若不等式![]() ![]() |
C.过点![]() ![]() |
D.设实数![]() ![]() ![]() ![]() ![]() |
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2022-01-24更新
|
1209次组卷
|
2卷引用:重庆市第一中学2022届高三上学期第三次月考数学试题
解题方法
2 . 已知函数
与
.
(1)若
与
在
处有相同的切线,求
、
,并证明
.
(2)若对
,都
使
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677fb21d94436bc9e92f3ef1ba22737f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03dd7b797412c4ac0d884a9781de7dec.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191e3c845e90f229f3c992aff85b92db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeec6bfdf6825e4a468ddc4158ab6398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021高二·江苏·专题练习
解题方法
3 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ff229e8416c2ff6e7208771acbf9b6.png)
(1)不等式
对于任意的
恒成立,求实数a的取值集合;
(2)若函数
与函数
的图象有且仅有一条公切线,求实数a的取值集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(3)设
,
,若函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10859140f06705b580f3ac3807e58d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ff229e8416c2ff6e7208771acbf9b6.png)
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae4b12d8a282854010fdec8e2ec106d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9c89d2cd1fb46b1e71ad10227c098.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5946299ed8f8c741a82c8d920e1e206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1163dc4158acac142a1d670eeab8ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ba925278baa53ad23a953fe62f2e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b479d1beea3cd559d9225da950a76eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760effa3c34aefb5d6bbd0e7ca0d48fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6fe150b0a721696c8c063999ba38d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae59a693d0d39d7afacbed93eb0abe9.png)
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2021高二·江苏·专题练习
名校
4 . 抛物线C:
的焦点为F,P为其上一动点,当P运动到
时,
,直线l与抛物线相交于A,B两点,点
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32293d25fb98c1d6b858234b23081010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a0328dde917c3e6d0f1ca9ddb6027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2a5c155717f3a59d7818b4bbdf44e9.png)
A.抛物线的方程为![]() |
B.![]() |
C.当直线l过焦点F时,以AF为直径的圆与x轴相切 |
D.若过A,B的抛物线的两条切线交准线于点T,则A,B两点的纵坐标之和最小值为2 |
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2021高二·江苏·专题练习
5 . 已知函数
.
(1)若函数
的图象在
处的切线过点
,求
的值;
(2)当
时,函数
在
上没有零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c64479cc022fcf1cc0f728344df5d34.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0837a23722da82801d7678e42bf4da.png)
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2021高二·江苏·专题练习
6 . 已知函数
,
(1)求曲线
在点
处的切线与坐标轴围成三角形的面积.
(2)
是
的导函数,若函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ea9b01cf309d9e0e8f16ab420d861d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf965b9d9fdd01079a17ff0507956f1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272f48ae2fb160c27990135115234348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec4e1b7cda0c9c097d91a3853d243ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d38215744ac397526dd72dc7de9c7c.png)
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2021高二·江苏·专题练习
7 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf66dcab4588d9837388918e71d86065.png)
(1)若函数
在
处的切线与函数
的图象平行,求a,b满足的条件;
(2)若
,且
恒成立,求实数a的取值范围;
(3)当
时,讨论方程
的根的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6263576e5c3f2324a8dac311476bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf66dcab4588d9837388918e71d86065.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187c21027ff08411931d32c530b64fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500fbb8e12c29160f53cb1ecc5f9f9bd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44dd9c3304c12211c3552028eb7778d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473e8289f2c3d8b59a0212832f9d6750.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d2ec53b642f5fe227480d970223fb4.png)
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2021·全国·模拟预测
名校
8 . 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
9 . 已知函数
,
.(参考数据:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282fa498b421b99856ec3d694000c012.png)
(1)求
在点
的切线方程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1d897bf1170f96cac0c36823a512a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6c622215561fc287bc630b9f2d055e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282fa498b421b99856ec3d694000c012.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0396ab0c1d9ed80ce093f5146381b7d0.png)
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名校
10 . 已知函数
,(
).
(1)求函数
在点(e,e)处的切线方程;
(2)已知
,求函数
极值点的个数;
(3)若对任意
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07d91c1fa8c8ee091cb41b29586fee24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958c912584bf9e900a07ecc07ab41ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d744de095bf0c0367a1cb869efcd2c00.png)
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