名校
1 . 已知函数
.
(1)讨论函数
的单调性,并求
的最小值;
(2)若不等式
对任意
的恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9138b3ef23b56e83b63574869a0c08e7.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bb9e98b6699fbfed3772d75c6bbe46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7906a1856861566f4e08ed91f644c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-09-09更新
|
306次组卷
|
3卷引用:福建省宁德市2020-2021学年高二下学期期末数学试题
解题方法
2 . 正六棱锥的侧面积为36,则此六棱锥的体积最大值为________
您最近一年使用:0次
名校
3 . 已知函数
,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae9174bb27aac8686e477710499639b.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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4 . 已知函数
在
上可导且
,其导函数
满足
,对于函数
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7994bbcf39f4dda34e877b21af71f103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/855689ee20e6cf63b84b930f12139238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28233efea1fb3114e7196bcbdff904d5.png)
A.函数![]() ![]() |
B.![]() ![]() |
C.函数![]() |
D.当![]() ![]() |
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5 . 将周长为4的矩形
绕
旋转一周所得圆柱体积最大时,矩形
的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/c787114c-7b98-45bd-81ac-d08f27b31063.png?resizew=106)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/c787114c-7b98-45bd-81ac-d08f27b31063.png?resizew=106)
A.1 | B.![]() | C.![]() | D.![]() |
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6 . 设函数
.
(1)当
时,求函数
的单调区间,并判断函数
的零点个数;
(2)当
时,求函数
在区间
内的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29a23b5a383f632ad996bf2addc5a4a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c712829d60b4ea93966a5c68c24d677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da063390ec587b6aa72b0a10162c8c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ce0c881a49650bf16c7e85c22df672.png)
您最近一年使用:0次
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解题方法
7 . 已知函数
(a为常数).且
有两个不同的极值点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求实数a的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7272d7d739444b46e3fdc0369caf0e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求实数a的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ec808ad60dbf016632ec816eaca1df.png)
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8 . 已知函数
,若关于x方程
有两个不同的零点,则实数t的取值范围为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5559ff6c7ae53e8a35b02908b1969c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d52f5547237c3b4337074a1967de1093.png)
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2021-09-03更新
|
829次组卷
|
4卷引用:福建省福州第三中学2020-2021学年高二下学期期中考试数学试题
名校
解题方法
9 . 已知函数
的最小值为0,其中
.
(1)求
的值
(2)若对任意的
,有
恒成立,求实数
的最小值;
(3)记
,
为不超过
的最大整数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde963cb37d1c9d3416caf23e2df4964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17eb3cd175226bf983501d5f8976755f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8238953df50b7a417c783555ab267fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b40f83dc0ade2958f0e7be9e5fe42ade.png)
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名校
10 . 函数
.
(1)
在区间
单调递增,求实数
的取值范围;
(2)若
,求整数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212a5960d0fc10c38f1212965aeeba5b.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f7464e7559a63bba3915987982fa9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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