解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66d47cea1912a94815fafaf27c8a34f.png)
11-12高二上·全国·单元测试 查看更多[1]
(已下线)2011-2012学年新人教版高二上学期单元测试(2)数学试卷
更新时间:2016-12-01 00:38:00
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解答题-证明题
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适中
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名校
【推荐1】选修4-5:不等式选讲
关于
的不等式
的解集为
.
(1)求实数
的值;
(2)若
,且
,求证:
.
关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fc4c91d5bfbfb0ec2969d8b37b2ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a521891098b625f372ff648d110afe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a373fb904316b6dac93c0caded72e9.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知正实数
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f41874327e21ef55fa8c7b5fa4c797.png)
(1)解关于
的不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55203770df4a952fbaa8bb4051cc1e8.png)
(2)证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f41874327e21ef55fa8c7b5fa4c797.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55203770df4a952fbaa8bb4051cc1e8.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548e795ce9cb18f02033c9ca265c01be.png)
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适中
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【推荐1】选修4-5:不等式选讲
已知函数
.
(Ⅰ)当
时,解不等式
;
(Ⅱ)若对于任意非零实数
以及任意实数
,不等式
恒成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1b4bdb71c9a9bba0a20c363fb266c4.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940adbf54e96ecb2bb2637e5f976a3b0.png)
(Ⅱ)若对于任意非零实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ec6626a72ae47e596f9f301c43bbdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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解答题-问答题
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适中
(0.65)
【推荐2】已知函数
.
(1)求不等式
的解集;
(2)记函数
的最大值为
,已知
,
,
,求
的最大值及此时
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008e3453592156eecba39e22d7714a93.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d0cd47609b9d1865dfff4979161cf5.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d4fcb22b9ef5b847927d6d3437e024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b12199d2cf307c3ec61c9da454e6e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7fb432ccce6979874c50ad6e162ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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