对于R上可导的任意函数f(x),若满足(x-1)f′(x)≥0,比较f(0)+f(2)与2f(1)的大小.
更新时间:2017-06-24 00:49:35
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【推荐1】已知
,函数
,
.
(1)讨论函数
的极值;
(2)若
,当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41c49039923746725df8698a0109567.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
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解答题-证明题
|
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【推荐2】已知函数
,
是
的导函数,且
.
(1)求实数
的值,并证明函数
在
处取得极值;
(2)证明
在每一个区间
都有唯一零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd2cb50e32b7dd952b7b8931fd140a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae17aeafc0a40b66bf6f65db99c237e.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb0413e82c996ae83b2f8e6440dc4e4.png)
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【推荐3】已知函数
.
(1)求
的导函数在
上的单调性;
(2)证明:
,有
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1a56f7efc7baafd4c7e740f02445b9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737c547ec827a640284b13e199d949f3.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02dd24e79072cb742ee54ccd0c7773f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4743ed0c24def1bb331afdcfaa115a.png)
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【推荐1】设函数
.
(
)若
,求函数
的单调区间.
(
)若函数
在区间
上是减函数,求实数
的取值范围.
(
)过坐标原点
作曲线
的切线,证明:切点的横坐标为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e70384ed88527160118bdde6a6b98a2.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
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(
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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(
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【推荐2】已知二次函数
的二次项系数为
,且不等式
的解集为
.
(1)若方程
有两个相等的实数根,求
的解析式;
(2)若函数
在区间
内单调递减,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c1d20e05db40b7b1eb36e5661d7de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7e88b74f492f89e21e4cf65353bdb6.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0723195c17e4b89ee327d0e70b9bd114.png)
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(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5be3af0c67a20bee47063487d305f2.png)
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解答题-问答题
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适中
(0.65)
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解题方法
【推荐3】已知函数
(其中
为常数).
(1)若
在
上单调递增,求实数
的取值范围;
(2)若
在
上的最大值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131574fbfc96a2be93d4127f19be272f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aadc68ed399afd6db385dae5e963c97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a084f6d06f1dc4470a9257636fc3fb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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