已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c81fe470cbc80def0562dcf5f221488.png)
(1)若函数
图像在
处的切线也恰为
图像的一条切线,求实数
的值;
(2)是否存在实数a,对任意的
,都有唯一的
,使得
成立,若存在,求出a的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c81fe470cbc80def0562dcf5f221488.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23c4d7c41b89ed396a5189fd6ed3536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)是否存在实数a,对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3980c52927f12c114f3b291ad714d778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f631b65e39c157f85ef33b82e006f078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012ab86de84bda00c8dcdc2b969dd8ee.png)
12-13高三上·浙江金华·期末 查看更多[1]
(已下线)2012届浙江省金华十校高三上学期期末考试理科数学
更新时间:2016-12-01 16:55:46
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解答题-证明题
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【推荐1】设
,其中
.
(1)求证:曲线
在点
处的切线过定点;
(2)若函数
在
上存在唯一极值,求正数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d522c2bf80eb8eeee75468c365c0cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求证:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】已知
,求曲线
在点
处的切线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1c079afd1b058adc67a50f48f3d466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797c488729678e74e0825c2e92b544b4.png)
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【推荐3】已知函数
,
.若函数
在
处取得极值,试求m的值,并求
在点
处的切线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0362aeecb104a5184699ff996bf1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbcfefd87538b7a6a0c61d71f94938ce.png)
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【推荐1】已知函数,而且
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2050ce742a030d9cc0c13fdcd6cb3923.png)
(2)若l是曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a20a61d384b658080b92d8c1a9e7c0.png)
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【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
(1)求
在点
处的切线方程;
(2)若
的一条切线
恰好经过坐标原点,求切线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cdf10f3e10c3775625ff753981a65df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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名校
【推荐1】已知函数
.
(1)求函数
的单调递减区间;
(2)求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04679db4711a1b686e439dc75af0a21.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07a1487c75df36feeb40998676cce3a.png)
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解题方法
【推荐2】已知函数
过点
,函数在点
处的切线斜率为4,且
为函数的一个驻点(即导数的零点).
(1)求函数
的解析式;
(2)求函数
的单调区间;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae06c488100e31570805778b1d322e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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【推荐3】已知函数
,
(其中
).
(1)若
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(2)若对于任意
,都有
成立,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c57718ebc2b78335f17452ca47cb2473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f279ed14505a5b48d7c777b0c0d7679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37600c3dd9f62ea3e9e8f89df4a7866a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知函数
其中
.
(1)若
在定义域内恒成立,求实数
的取值范围;
(2)设
且
在
上为单调函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7b809ca4cfb7f0db51044bf12c72ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c2af46c958d09460bf8186cc4962c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dbbe249d4d559b0d0d629f7d2f613a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1303a0a1a9c42e495507b1e2271b1cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
【推荐2】已知函数,
,k为常数,e是自然对数的底数.
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e1721a86ad11b90bd646647e69eb58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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【推荐3】已知函数
,若对任意两个不相等的正实数
,
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d3939af2307f5c82d7144a51401da1.png)
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