1 .
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd8ec6fc551585f093d0a8848aace07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2829c117b291deabd43fdd524d253a26.png)
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解题方法
2 . 设实数a、b、c、d满足
.求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb1195082dd8bd2e2a2988c86331e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4683844bd0e81d7ae5e2eec088e91c.png)
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3 . 已知正实数
满足
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21aea4b9cdf4b1c51f1e770e74370b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f560f01fd966becba43e5c1baf6062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdfc58fb5609724783d8e9ec311378c.png)
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解题方法
4 . 设正实数a,b,c满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33093f929aabfc352e30301dd3eefccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884c267c31d8ea51f3681b59dabdde58.png)
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5 . 设
为非负实数,满足
.求
的最小值和最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7169ce3255d2a02a20aa5932d2bd48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a399a276e30510e557b42ee5db5510b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635e18bfef2e7514cfacf088e55b95e6.png)
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名校
解题方法
6 . 已知函数
.
(1)求不等式
的解集;
(2)若
的最小值为
,正实数
,
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72665a0e4d94069e2530f89695794f1.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b45f8224a638bb503ccb01749cfeb1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3435f5038d0e0107fdc065c477feb96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583bfecb049f726cb63b6bc8b473ba1e.png)
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2017-04-01更新
|
673次组卷
|
3卷引用:2017届广西陆川县中学高三下学期知识竞赛理数试卷
7 . 求函数
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d2692c7a0018ccc9e6f46280b20380.png)
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