已知关于
的不等式
的解集为
.
(1)求实数
,
的值;
(2)当
,
,且满足
时,有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49133adfd6f0a58283212fcd1eb0db12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a2da0ea307ca623451749d3f2858d1.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6fa0bb61ce60310f18cb95bf2e83c8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081bb306aa6db74ed06c08cedad45d35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a9e1fbbbd819b79426ad3ba8bcc70f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4fc3c748a2ef82d4b4892dcb6dd61f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
更新时间:2021-11-10 08:05:50
|
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解答题-问答题
|
适中
(0.65)
【推荐1】关于
的不等式组
的整数解的集合为
.
(1)当
时,求集合
;
(2)若集合
,求实数
的取值范围;
(3)若集合A中有2023个元素,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd01c8cbd1652406a7e9ef6e385c860b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e788c32187ae2cc97aaa24da1d40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfedff3301c09cac5f040c36e1fe0fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若集合A中有2023个元素,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f28ad2b2a604ad0831c8375115fbad.png)
(1)若不等式
的解集是
,求不等式
的解集;
(2)当
时,
对
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f28ad2b2a604ad0831c8375115fbad.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836c1dab292988ac9c6cc9f795bbf0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f8e729ef03b65484d24303b32849c10.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8792eaab0b6464e5d07436c64aa751a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95842ad442c7f6d5ec4b32939b929e63.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
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【推荐1】已知函数
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(1)若不等式
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(2)当
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(3)若不等式
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe59e563203116641b74ff778ff9242.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842b839d79e10d7db7cb39c8726d1adb.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218cb8cdff6719e4a9d2f9ee2ece676a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】
为何值时,不等式
对任意实数x恒成立
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8657d489a816d2eabbb0da13d35b04.png)
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解答题-问答题
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适中
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解题方法
【推荐1】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240fb42894b4ce46fd9129e896eb6c5c.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐2】设正数
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(1)
;
(2)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f0b84ee4ed90face0993d4f4dda379.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45900deae0489e87fe448948e8091c4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131ac7eb1e911c9a40e84235bf3742ed.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
【推荐3】设函数
的最小值为
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(1)求
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(2)若
,
,
为正实数,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2009433870d839d8880fb45a2e41284f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](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/81d9ac64e39f1b5cba39369859253c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6298c2d7746c1d51048dc38dbb48e008.png)
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