设函数
.
(1)求函数
的最小值;
(2)若函数
的最小值为
,且正实数
,
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93031e03b7386d3db82c63ff5f644475.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00767cfdee5c7df82580172fe4cc485d.png)
更新时间:2021-05-30 14:48:45
|
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解答题-证明题
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适中
(0.65)
名校
解题方法
【推荐1】已知正实数
、
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(1)求
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(2)求证:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
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(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bcbeeadd42a6c39144187d646f7495.png)
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解答题-问答题
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适中
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【推荐2】已知函数
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,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffe96738ff320c719eb69dd0d71f46e.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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【推荐3】
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(1)求角C的大小;
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【推荐1】设函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a99a252a0914711d5f5658d01f41529.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022b54fee1016ac571426a4d9df98d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f164e2348de7d9967b1832004db124.png)
您最近一年使用:0次