(1)已知
,求
的最小值,并求取到最小值时
的值;
(2)已知
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9173d6b4acd46aaecceed819d739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb52b8a93bff543e0ff05218985b214.png)
更新时间:2022-11-13 16:36:32
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知函数
的最小值为
,
(1)求不等式
的解集;
(2)若正数
,
,
满足
,判断是否存在
,
,使得
,若存在,请给出一组
,
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeba23d9c273f50e5bc37183bd3ee742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975af98526d943ccd1ab7b9f0e022374.png)
(2)若正数
![](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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceed0cc6e0372e8f0b2db019aa87e8e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c57604caaf16e45475eb3a19e18476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59df592843dd2bfd0e2573369710641d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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(0.85)
名校
解题方法
【推荐2】已知
.
(1)求
的最小值;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783f5a72386c621e4adc563ce4cd4292.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd311f055e0ab607145b36b915cd116e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5206c152bc98ac2ff6faef8ebb3247.png)
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解答题-问答题
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【推荐1】
的内角
的对边分别为
,满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c16db9a4e4301cfe56070aa7df9f1c.png)
(1)求
;
(2)
的角平分线与
交于点
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c16db9a4e4301cfe56070aa7df9f1c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e14d71667c64ab37596ff76207c7a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451be539a00c5a0fa9e00fc9bf4c39fd.png)
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【推荐2】(1)已知定义在
的函数
,求函数的值域.
(2)已知
,求函数
的最小值及取得最小值时
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79e1e6ac352197f8e11a793ce86f1da1.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae20cedeaae3d083cb18215ce83b40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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