名校
1 . 设函数
.
(1)当
时,求
的极值;
(2)是否存在
,使
在
上恒为增函数,如存在,求出
的范围,如不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1c681e477fc57f01489aabbafae110.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知函数
在
和
处取得极值.
(1)确定函数
的解析式;
(2)求函数
的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cbeb40e4e4e5bdfd7d848a80f2eb88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e8ebd7c4463e7311f7ab4d7cd7d241.png)
(1)确定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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3 . 已知函数
.
(Ⅰ)当
时,求函数
的极值;
(Ⅱ)若
,且方程
在区间
内有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f98dc7b4203e30060893f93e107150.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907e4ba6d5f2eea68442def1911957fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-01-11更新
|
625次组卷
|
3卷引用:内蒙古集宁一中2019-2020学年高二下学期第三次月考数学(理)试题
内蒙古集宁一中2019-2020学年高二下学期第三次月考数学(理)试题【市级联考】河南省开封市2019届高三上学期第一次模拟考试数学(理)试题(已下线)第5讲 函数、导数与方程(练)-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)
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4 . 函数
在区间
上的最小值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd2a4fd3bd595a15539b593f3136fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e99bebf8db0d314aacb2cb1f09bf48c.png)
A.-9 | B.-16 | C.-12 | D.9 |
您最近一年使用:0次
2018-12-24更新
|
1850次组卷
|
3卷引用:内蒙古自治区乌海市乌达区2018-2019学年高二上学期期末数学(文)试题
5 . 已知函数
.
(1)求
的极小值和极大值;
(2)设曲线
的切点横坐标为
,切线斜率为
,令
,当切线
在
轴上的截距为正时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7037420db594ace5a0d829b3d301de4b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88aaa3802d7bda0c659e82e15ce54aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ea09de2a09342b1bfdac29fc14a28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82a1224e47f31ecdfffd328d5a3ab6d.png)
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6 . 对于三次函数
,定义
是
的导函数
的导函数,经过讨论发现命题:“一定存在实数
,使得
成立”为真,请你根据这一结论判断下列命题:
①一定存在实数
,使得
成立;②一定存在实数
,使得
成立;③若
,则
;④若存在实数
,且
满足:
,则函数
在
上一定单调递增,所有正确的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012429b7101ba0f84e7b45598ed12db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49691217c9024817a0b1912484090c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c5fe8a9ad42e52a8a40242865c6752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d005c9acabfb207dc315f7335fb56d6b.png)
①一定存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868a4cf0549507ca5f2a18b2d1070085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118168a08c2df98c6923e8e029f610c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd36d0c203f6d2f629869c4c204b223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faaf2b9f4064ba6a3da11cd74975420f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224d41b53d0ad77d8bbe77566c8288c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df79854c0ad67f1b29ba550474ed7c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104ea0b930594d027e94236827f6c491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868a4cf0549507ca5f2a18b2d1070085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e25846326d7fa6019f4e59ae6a4ade7.png)
A.①② | B.①③ | C.②③ | D.②④ |
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2018-12-24更新
|
540次组卷
|
2卷引用:【校级联考】内蒙古鄂尔多斯西部四校2018届高三下学期期中联考数学(文)试题
7 . 若x=3是函数f(x)=(x2+ax+1)ex的极值点,则f(x)的极大值为( )
A.﹣2e | B.-2![]() | C.22![]() | D.6e﹣1 |
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8 . 在以下所给函数中,存在极值点的函数是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知函数
既有极大值又有极小值,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624df0c3cefd83092da49df2dbf06f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2018-12-19更新
|
894次组卷
|
2卷引用:内蒙古自治区乌海市乌达区2018-2019学年高二上学期期末数学(文)试题
名校
10 . 已知函数
.
(1)若
,求函数
在
处的切线方程;
(2)若
的导数为
,g(x)=
,求g(x)的单调区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eba856cc247a6ade722041c285aa8e0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8bcbea3953b00ca495279f3d3bca24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
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