13-14高二下·甘肃武威·期末
1 . 函数
的图象如图所示,则导函数
的图象的大致形状是
![](https://img.xkw.com/dksih/QBM/2014/7/31/1571829781536768/1571829786681344/STEM/dd3283d773734455b06596e72ff0a88d.png?resizew=178)
![](https://img.xkw.com/dksih/QBM/2014/7/31/1571829781536768/1571829786681344/STEM/73dfca6565f6488b97c99b75051d99a0.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2014/7/31/1571829781536768/1571829786681344/STEM/1685576012bd4c9ebc6d6792de0f3945.png?resizew=67)
![](https://img.xkw.com/dksih/QBM/2014/7/31/1571829781536768/1571829786681344/STEM/dd3283d773734455b06596e72ff0a88d.png?resizew=178)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)若对任意的
,
恒成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/6/24/1572827995234304/1572828001886208/STEM/5b8d7866c6a6462891cc993ee3511bbc.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/6/24/1572827995234304/1572828001886208/STEM/d353c33fb0db46f29e22f2a22920b807.png)
![](https://img.xkw.com/dksih/QBM/2016/6/24/1572827995234304/1572828001886208/STEM/18d3e878b0e5424f9341dfa6e2af070e.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8daa033fb137290ce6386b946877acdc.png)
![](https://img.xkw.com/dksih/QBM/2016/6/24/1572827995234304/1572828001886208/STEM/7668ec055f6146359ce5515addedf228.png)
![](https://img.xkw.com/dksih/QBM/2016/6/24/1572827995234304/1572828001886208/STEM/38c84a65417b4b7c8bcdc8ec283b2da3.png)
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2014·江西宜春·一模
名校
3 . 已知函数f(x)=x3+
x2+ax+b,g(x)=x3+
x2+ 1nx+b,(a,b为常数).
(1)若g(x)在x=l处的切线方程为y=kx-5(k为常数),求b的值;
(2)设函数f(x)的导函数为f’(x),若存在唯一的实数x0,使得f(x0)=x0与f′(x0)=0同时成立,求实数b的取值范围;
(3)令F(x)=f(x)-g(x),若函数F(x)存在极值,且所有极值之和大于5+1n2,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec85f29c0860b57a8f0cf8098c13a97e.png)
(1)若g(x)在x=l处的切线方程为y=kx-5(k为常数),求b的值;
(2)设函数f(x)的导函数为f’(x),若存在唯一的实数x0,使得f(x0)=x0与f′(x0)=0同时成立,求实数b的取值范围;
(3)令F(x)=f(x)-g(x),若函数F(x)存在极值,且所有极值之和大于5+1n2,求a的取值范围.
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4 . 设函数
(
)
(1)求
的表达式
(2)求
的单调区间、极大值和极小值.
![](https://img.xkw.com/dksih/QBM/2016/3/22/1572552464891904/1572552470298624/STEM/5f7cffc08fac40ceadf1af6323884d8b.png)
![](https://img.xkw.com/dksih/QBM/2016/3/22/1572552464891904/1572552470298624/STEM/47aa56e2fe244ffa9c384dbb20feaa1f.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/3/22/1572552464891904/1572552470298624/STEM/b94706503a1d4859b28b92b4a18c8366.png)
(2)求
![](https://img.xkw.com/dksih/QBM/2016/3/22/1572552464891904/1572552470298624/STEM/2e945d6df4ad42809d3bdfaf6a2549e3.png)
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5 . 已知函数
,若
存在唯一的零点
,且
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14343b9cd81418b0de3fa582c2ea7d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13747fa9a42164caebe2c9b7c5d06d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-07-19更新
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3卷引用:甘肃省兰州市第十中学2016-2017学年第二学期期末考试高二数学(理)试题
6 . 曲线
在点
处的切线方程为_____________ .
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905528832/STEM/3d2a21162c754f83b4d50785f11aafff.png?resizew=53)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905528832/STEM/e5298cc69839422f9a37836fc3bc9ecf.png?resizew=32)
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9-10高三·安徽合肥·阶段练习
7 . 函数
的定义域为开区间
,导函数
在
内的图象如图所示,
则函数
在开区间
内极值点有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5b60fb55-f0b3-4d69-b4a5-a74970d043aa.png?resizew=247)
![](https://img.xkw.com/dksih/QBM/2011/8/17/1570286458413056/1570286463565824/STEM/b6a50a59a3a74f71afacf4d5ba892cd2.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2011/8/17/1570286458413056/1570286463565824/STEM/976dd4670bef4d6782e63db6e3664c21.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2011/8/17/1570286458413056/1570286463565824/STEM/4408e08f29de40ad83e79096a8974d3d.png?resizew=40)
![](https://img.xkw.com/dksih/QBM/2011/8/17/1570286458413056/1570286463565824/STEM/976dd4670bef4d6782e63db6e3664c21.png?resizew=37)
则函数
![](https://img.xkw.com/dksih/QBM/2011/8/17/1570286458413056/1570286463565824/STEM/b6a50a59a3a74f71afacf4d5ba892cd2.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2011/8/17/1570286458413056/1570286463565824/STEM/976dd4670bef4d6782e63db6e3664c21.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/5b60fb55-f0b3-4d69-b4a5-a74970d043aa.png?resizew=247)
A.1个 | B.2个 |
C.3个 | D.4个 |
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2011-03-07更新
|
704次组卷
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28卷引用:2015-2016学年甘肃省武威二中高二上学期期末文科数学试卷
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8 . 曲线
在点
处的切线方程为____________ .
![](https://img.xkw.com/dksih/QBM/2016/3/28/1572558427725824/1572558433460224/STEM/5c579874172546588dcd86a505929a25.png?resizew=84)
![](https://img.xkw.com/dksih/QBM/2016/3/28/1572558427725824/1572558433460224/STEM/5d9cf6eb3d6e405f8711891da6209b53.png?resizew=33)
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9 . 已知函数
(
、
为实数),且曲线
在点
处的切线
的方程是
.
(1)求实数
的值;
(2)现将切线方程改写为
,并记
,当
时,试比较
与
的大小关系.
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/d07f6d132c0b4663b2e269b7d187c6d0.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/b0306d55d140420fb94e9a6ce6b7754c.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/d356190b6d594a57bbf474b7ff073ca0.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/9bca665e2ae740f19e1868142ec421c1.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/4d2ff4dd44b74c0b83da075ff1b5b03f.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/750a525824674f4fa52ca60746ea07e4.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/f80671867f9b41b1940245f52de74eda.png)
(1)求实数
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/e5a5467e7d704ae0abf6123f3e96030f.png)
(2)现将切线方程改写为
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/b3ecfb3957e24992aa8ec6168f47db0d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/0bdb9d05f46240fdbb70d64ac4bc4ebc.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/df147ee4ea9d4dc695d20e5948d542c8.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/3ff9362c4ad14825a9c7c7577c1a4ef1.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572553899540480/1572553905774592/STEM/58f23720ceed4843b4e8eb6540cbf3a4.png)
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2016-12-04更新
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228次组卷
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2卷引用:2015-2016学年甘肃省天水市秦安县一中高二上学期期末文科数学试卷
10 . 设函数
,曲线
在点
处的切线方程为
.
(Ⅰ) 求
的解析式;
(Ⅱ) 证明:曲线
上任一点处的切线与直线
和直线
所围成的三角形面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f58a01bb001a49ac61bdfbe87a0df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664e1e8a1634d24c34481f3783664fa2.png)
(Ⅰ) 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ) 证明:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
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