名校
1 . 函数
在
上最大值和最小值分别是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369234028e0a0bac3fc68ce7ddab8509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
A.5 , -15 | B.5,-4 | C.-4,-15 | D.5,-4 |
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名校
2 . 在函数
的图像上任意一点处的切线为
,若总存在函数
的图像上一点,使得在该点处的切线
满足
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c482f00807253bc6df9e8c401e08ed07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9367885b79c4c98f102a6f9cd5acd05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2018-02-17更新
|
633次组卷
|
7卷引用:湖北省荆州中学、宜昌一中等“荆、荆、襄、宜四地七校考试联盟”2018届高三2月联考数学(文)试题1
解题方法
3 . 某工件的三视图如图所示,现将该工件通过切削,加工成一个体积尽可能大的长方体新工件,并使新工件的一个面落在原工件的一个面内,则此长方体体积的最大值为__________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/a8e8ebd9-71e0-483d-9aba-86eccca57628.png?resizew=169)
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4 . 已知函数
是偶函数
(Ⅰ)求常数
的值,并写出函数
的单调区间(不要求证明 );
(Ⅱ)若实数
满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302b2794889f872803381b68ea077896.png)
(Ⅰ)求常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059b8ad78b0325a7cfe82424122cf2ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知函数
,其中
,
为自然对数的底数.
(Ⅰ)设
是函数
的导函数,讨论
在
上的单调性;
(Ⅱ)设
,证明:当
时,
;
(Ⅲ)若
,函数
在区间
内有零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4fe745e7d66eb2210136315b13eed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797bbd18359c9a29842b39109b3a0aac.png)
(Ⅰ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](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/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d9f7907ab3e63c5cf0f5637dc5ae11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dbbe0e48670b3e3fe1c02fd42ea55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ad8c947e7b6d61c611bb1b9df7eecf.png)
(Ⅲ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
6 . 已知函数
,若
,且
,则
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c850459abf75e32cc3db0f24cd6675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc9edb22a22dd339bf9f169e6642169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
是
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2017-09-15更新
|
454次组卷
|
2卷引用:湖北省荆州中学2018届高三上学期第一次双周考数学(理)试题
名校
7 . 已知函数
.
(Ⅰ)若x∈[-1,1],求函数h(x)的最小值;
(Ⅱ)当a=3时,若对
∈[-1,1],
∈[1,2],使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5359cde85269e6b99f83ce0a31285bd1.png)
成立,求b的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4d8bd2e4523783d408d580e0600d7a.png)
(Ⅰ)若x∈[-1,1],求函数h(x)的最小值;
(Ⅱ)当a=3时,若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb6ca6fddd4f84e05ab15cce7b02d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27de4a1b3f4bf4abee265406f586302a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5359cde85269e6b99f83ce0a31285bd1.png)
成立,求b的范围.
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8 . 已知
,且
是实常数,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
(1)讨论
的单调性;
(2)求
在[-1,2]上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a039445a09fe26eb787a4f0272a2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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9 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96c16edbe79b3cf7c1840a035a7d19a.png)
(1)当
![](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/5828873f8369183faf71181cda5b61d2.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf99ab421f0a29211b604be543743940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-02-08更新
|
654次组卷
|
2卷引用:2017届湖北荆州市高三文上学期质检一数学试卷
10 . 若函数
,且在区间
上的最大值为
,则实数
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1ec5d35639917645d0cd159f58ab20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d2f50e9ef666caa48cd4848ea8aefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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