已知函数
,若
存在四个不相等的实根
,且
,则
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b546a3cad1cf719fdb8b6ca09100f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ca10d4dc4ed7a0c77bbcaac846f123.png)
22-23高三下·湖北·阶段练习 查看更多[5]
更新时间:2023-03-09 15:14:56
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相似题推荐
填空题-多空题
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适中
(0.65)
【推荐1】(1)化简:
=________ .
(2)化简:
=________ .
(3)设
,且
,则
等于___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414bc7461b921db3553f92f5c237407c.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2298f997eb47651c14a1232fd0617ed.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ffbece8eaa48d6f874ad33257a0da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509f3b3c1900fb5a6370964162760a24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】计算:(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc2778001f33a80737f9c4ae0306605.png)
_________ .
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9ab2f4f89b802f1e7ab56ccf75577.png)
_________ .
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa62387fe10ced5d6feac762862497e.png)
_________ .
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f95ef832a0c644280eaf04c27d6b406.png)
__________ .
(5)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8246c55bb0bb7c16aa8d2e5bb0ab2ca8.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc2778001f33a80737f9c4ae0306605.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9ab2f4f89b802f1e7ab56ccf75577.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa62387fe10ced5d6feac762862497e.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f95ef832a0c644280eaf04c27d6b406.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8246c55bb0bb7c16aa8d2e5bb0ab2ca8.png)
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解题方法
【推荐1】定义在R上的函数
满足
,且当
时,
.若对任意
,都有
,则t的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebfc4f151436fcdc84df9edbd789320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c1a6beffa625e5e6a92c01d369b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a386d4e30faf77d98a234085e863b68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
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【推荐2】直线
与函数
的图象交于
,下列结论正确的是_________ (填序号)
①
;
②
;
③
;
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676145e8905a863dfe9353c487edaf80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f7701bfbb74039de04042baa9c1679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31feec91af699f3cf52c57acbb593b91.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf81a4a39b4e2df4d05dc3b2fcc28150.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d900314efb0e4cacb6e5de945b5397.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f755e1d4bba472bcb15cb7efbc1ffc4.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74f9a9cb4a29ac9d8f2aeda19d913ca.png)
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【推荐3】已知
是常数,如果函数
满足以下条件:①在定义域
内是单调函数;②存在区间
,使得
,则称
为“反
倍增三函数”.若
是“反
倍增三函数”,那么
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e1c4e16e2ff56b5eb232e64fb16f63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b49cc69bf824f1e3cdf66ede6730f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6f37e972deddb083742a2a3a63b986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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名校
解题方法
【推荐2】若实数
满足
,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04959523a28786962d51cfb43a8767d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b75e2a6ed980f56b1086deeca6fbd70.png)
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