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1 . 已知定义在
上的可导函数
和
的导函数
图象如图所示,则关于函数
的判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f414b1c1d8e82496aa575cad3a0997a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc57150db1eb84d8af5da8ab12007ed.png)
A.有1个极大值点和2个极小值点 |
B.有2个极大值点和1个极小值点 |
C.有最大值无最小值 |
D.有最小值无最大值 |
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解题方法
2 . 已知函数
.
(1)若曲线
在
处的切线方程为
,求
和
的值;
(2)若
是
的极值点,求
的极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f7dfbed24c0ec88d3b42a9703ee96c.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a3af08cab4a6c682beb88007727834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
3 . 已知函数
.
(1)求
单调区间及最值;
(2)已知
,且
,若
,求整数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc22c09ac365f586eae85db57184797e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5473a0945b7de1d373b8651ec3d2201f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09006a42af3881e8242fdeb319b037b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知函数
.
(1)讨论
的单调性;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19fa54620fdf2ba3b4488a851875bf6e.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cd0eaf0f73dcf92665c83676ad40887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)设
,证明:
在
上单调递增;
(3)判断
与
的大小关系,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90abf4340754de993128fefcf93c3d9b.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3832d863e6cefdfe45cff4319e1fbdb.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146d3d11d5f0a324f3ad2dcaa6021c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
(3)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68f75f7903e505329ce87861809ba31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8ae8993088868740f8a641cd896ecf.png)
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解题方法
6 . 已知函数
,当
时,
是
唯一的极值点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422fbc246da24dba1f9ab0b1147e2a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb952074159e1984abd041750e5737b5.png)
______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0791bdd8c89695095d7e55db8168e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb952074159e1984abd041750e5737b5.png)
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8 . 将4个不同的小球放入编号为
的三个盒子,每个小球只能放入一个盒子,每个盒子至少放一个小球,若
盒子中只放一个小球,则不同的放法数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85a5d6c5aeb72c7408558e76f0d308f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4489d9b83072184c0e1d6b09be50ca.png)
A.18 | B.24 | C.48 | D.72 |
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9 . 已知函数
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc1b193aa193153eb402df8560778e6.png)
A.函数![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.当![]() ![]() ![]() |
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10 . 如图所示的电路共有4个开关,每个开关均有断开和闭合两种情况,则该电路从
到
接通时,开关的开闭情况共有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.1种 | B.4种 | C.7种 | D.15种 |
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