已知函数
.
(1)若对任意的
,
恒成立,求正实数t的最小值M;
(2)若
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f727b5788e3ead168b1f00337085e7d7.png)
(1)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d1bb059c8722e4e16e9f59ca84d77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665dc334a37e61c356b636604eb0f8c3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1fa516ac6a412c9befd3d951512c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10ad97db57fdd2f7212ea1758ce3755.png)
更新时间:2022-03-09 18:11:44
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【知识点】 分类讨论解绝对值不等式解读
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解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
,若
的最小值为1.
(1)求实数
的值;
(2)若
,且m,n均为正实数,且满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8365729abcce144c75c01b1d914b733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5ba9ac702d49b33b402a24495d782a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c918ca5d4e6d46ed130f85e5fa608d.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知
.
(1)若
,求不等式
的解集;
(2)证明:当x∈R时,对任意
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8929e4af575e482f617ec4d210466162.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee07d10876bc25a53d400fabd33d5467.png)
(2)证明:当x∈R时,对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b13c24f30587a7de04362266d8c3de.png)
您最近一年使用:0次