已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed762478d4c1460ea95a9dd9a201d1e.png)
.
(1)讨论函数
在定义域内的极值点的个数;
(2)若函数
在
处取得极值,且对
,
恒成立,
求实数
的取值范围;
(3)当
且
时,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed762478d4c1460ea95a9dd9a201d1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3442ce843d02b54055cfad056b091d7.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6a8984aa398bf767ccd9a601d77983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71944acb81a6e3e219f6f6f748ee3f2d.png)
求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe38ccfd3bc4b10b7c51a9089648196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f4e30ef3c268ca5b374b4147827063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916bb2cc1b29574ff95b47567c59ee0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21485c942d307ba8aea57c089bbc8b48.png)
2012·辽宁大连·二模 查看更多[5]
(已下线)2012届辽宁省大连市沈阳市高三第二次模拟考试理科数学试卷(已下线)2011-2012学年广东省湛江二中高二下期中理科数学试卷(已下线)2013届湖北省襄州一中枣阳一中宜城一中曾都一中高三上期中理科数学试卷(已下线)2013届海南琼海嘉积中学高三上质量监测(三)理科数学试题(已下线)2014届甘肃省兰州一中高考模拟一理科数学试卷
更新时间:2016-12-03 03:26:54
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解答题-证明题
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适中
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解题方法
【推荐1】已知函数
.
(1)求函数
的极值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba43f5a48f1e38b36d9946139602a23f.png)
(1)求函数
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(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec16cf130d345a19fc8acbeed5d9313.png)
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【推荐2】已知函数
,
是
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(1)求实数
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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)
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(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)求曲线
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处的切线方程;
(2)当
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,求a的取值范围.
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(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
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【推荐1】已知函数
.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f34cd9c57d7aab321d52c186783d327.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
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(2)若
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【推荐2】设函数
,
的图象在点
处的切线与直线
平行.
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的值;
(2)若函数
,且
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上是单调函数,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b197950feeb61ca01b75d5b0dd646e53.png)
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(1)求
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(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c75ddb9e6655c0d5d6a2f36e8c223795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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【推荐1】已知二次函数
,关于
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,其中
.
(1)求
的值;
(2)令
,若函数
存在极值点,求实数
的取值范围,并求出极值点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0958781bd1c23a3afbe2f77b08a571c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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(1)求
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(2)令
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适中
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
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(2)讨论函数
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【推荐3】在新冠肺炎疫情肆虐之初,作为重要防控物资之一的口罩是医务人员和人民群众抗击疫情的武器与保障,为了打赢疫情防控阻击战,我国企业依靠自身强大的科研能力,果断转产自行研制新型全自动高速口罩生产机,“争分夺秒、保质保量”成为口罩生产线上的重要标语
![](https://img.xkw.com/dksih/QBM/2022/2/20/2920501531246592/2923401923002368/STEM/b980bacb-fa9d-4f55-a3ff-0e8f0cc1960e.png?resizew=275)
(1)在试产初期,某新型全自动高速口罩生产流水线有四道工序,前三道工序完成成品口罩的生产且互不影响,第四道是检测工序.已知批次A的成品口罩生产中,前三道工序的次品率分别为
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,
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(1)在试产初期,某新型全自动高速口罩生产流水线有四道工序,前三道工序完成成品口罩的生产且互不影响,第四道是检测工序.已知批次A的成品口罩生产中,前三道工序的次品率分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd19eedbe1799458eeff436d3d6f228a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
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