解题方法
1 . 已知函数
,
,若存在
,使得
成立,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b26f55c7c29644dfe0277d3e2adf10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9768e5e49425c11253db1c5098a6d2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffcfd6c758e227655646a0949a0956e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fa9a938e6f518a7d117e8f3910b76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ed4c84be6b7b803f9333fa6110c60f.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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解题方法
2 . 已知函数
,函数
的图象在点
处的切线方程为
.
(1)求函数
的表达式;
(2)若
,且
在
上的最小值为
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3dba99d797fb510cf97a69de003911b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604f25e23489409386a06039adcaa151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cf0f8829ad6ed064ba129545b2d3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d2f7cf8b2952f5de03a32af45831cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46952263349c0bff2725caeeb0b5f6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
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3 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a791179c8e1d161421f39f89e4433b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eee46116daea8878291d0de66f91d5c.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2802c276e9b93d68ae8cca6b201e05f8.png)
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解题方法
4 . 若不等式
在
上恒成立, 则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821c35265ccf376d0b84b2ac4400cd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 若函数
恰有两个不同极值点
.
(1)求
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7fb60d4c972b57e4d455f5be30c830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3661dbd3b2c578c685e6a11a4102ddd.png)
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6 . 下列四个命题(
为自然对数的底数)
①
;②
;③
;④
.
其中真命题序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa011355ad848a4003473335a4919fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0452747255a29658ac38f97be8048e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1ebf06bfb3a4afee47c7de5dacb3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902d2187b7b2449a1960fada9a89a0e4.png)
其中真命题序号为
您最近一年使用:0次
名校
7 . 已知函数
(其中e是自然对数的底数,a,
)在点
处的切线方程是
.
(1)求函数
的单调区间.
(2)设函数
,若
在
上恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e79c997d46aec7871ddf2f99f35665c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739c9635c5ec4360a1da1e1f9a40620d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3f7fc2114bef0fdd05f5dda98868c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f15318d2d6664ecdf81180baf70a0c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
您最近一年使用:0次
2020-05-12更新
|
1308次组卷
|
6卷引用:湖北省襄阳市老河口市高级中学2022-2023学年高二下学期期中数学试题
湖北省襄阳市老河口市高级中学2022-2023学年高二下学期期中数学试题2020届江西省吉安、抚州、赣州市高三一模数学(理)试题江西省2019-2020学年高三质量监测理数试题江西省2020届高三毕业班新课程教学质量检测卷理科数学试题(已下线)【新东方】【2021.5.19】【SX】【高二下】【高中数学】【SX00082】辽宁省沈阳市东北育才学校2020-2021学年高二下学期期末数学试题
8 . 已知函数
.
(1)若
在
上单调递增,求实数
的取值范围;
(2)若对任意
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8454e81aecca1ab70dc2ee1df11804c7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb5112c448697bda3e455855bb557cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 若函数
满足
,且
,则
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4dbad2897844bbcf62b5432cf233a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f45f66366a813ca0dfeadbe8b58d455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18dca3e1c75fa57bed69de10ad543dd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
.
(1)求
的零点及单调区间;
(2)求证:曲线
存在斜率为8的切线,且切点的纵坐标
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31178f1978c6aef5443c8400fee606c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb1b4d347d6ccd6e3348470195866d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4be602013c216a499bffb6e571be9c5.png)
您最近一年使用:0次