2023·全国·模拟预测
1 . 若
,
满足约束条件
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2247b638bafc0b7ac719d522fe18ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb9ad98fe2bea30a8d22f17532584f1.png)
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2 . 已知
满足
,若
,其最大值为
,最小值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d06ad126eef8c33fdcd8a55107fe7d.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e8e8785c0674749456db5447264d2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea21a476d229f2a0c68c2d0d20ef2a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d06ad126eef8c33fdcd8a55107fe7d.png)
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解题方法
3 . 对于函数
和
,设集合
,
,若存在
,
,使得
,则称函数
与
“具有性质
”.
(1)判断函数
与
是否“具有性质
”,并说明理由;
(2)若函数
与
“具有性质
”,求实数
的最大值和最小值;
(3)设
且
,
,若函数
与
“具有性质
”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd445c48de2885de43dcca23f87c60e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60232ae54ce7a9fe4e233f155c03a1e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa273c6bf06db59f93c900e6bf8eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949c0be52082aed7e1fecd109f92aebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f74a80023f92040d7e6363ae205ca14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608573102f4d2fe1eb1042dd6cbf3ccc.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e663a09cdcde628b5633a6ab07dd55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62025398af79c73f9e68e2f749f8c568.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae6b2bee0166c79b35b91dc426b1ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc68ca24e3777cd07bc1a6a50ab7d9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a631d6e9b5cc899fba66187a3ac9735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bdc8d2686a05f12a2ba8a7e3b01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd30efc0aa17157e8d79b97afa95248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d746fee11783afd3475f9524b1ac1436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bf6499d677a7a1976507afaa672955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6fae2eb13a7fe44adaa4fd4bd063ae.png)
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2022-06-28更新
|
729次组卷
|
3卷引用:专题05函数的应用必考题型分类训练-2
2022高三·全国·专题练习
解题方法
4 . 已知函数
,
为
的导函数.若
在(0,1)上单调递减,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae06c488100e31570805778b1d322e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() |
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2022高三·全国·专题练习
解题方法
5 . 已知正数
,
,
满足:
,
,则
的取值范围是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46b0f59cca115165b305cc4cd1d5f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a93f448c9660e660b7fb4a26dffccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ecf7ee037e01c207824a30d5239d528.png)
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解题方法
6 . 若实数
满足
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c201c680cf3f3f734a51e16df32665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee1631025da1312490dbb433ee9f2d0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-11-21更新
|
414次组卷
|
4卷引用:收官卷02--备战2022年高考数学(文)一轮复习收官卷(全国乙卷)
(已下线)收官卷02--备战2022年高考数学(文)一轮复习收官卷(全国乙卷)(已下线)收官卷02--备战2022年高考数学(文)一轮复习收官卷(全国甲卷) 江西省景德镇市第一中学2021-2022学年高二上学期期中数学(文)试题河南省新蔡县第一高级中学2021-2022学年高二上学期11月月考数学(理科)试题
名校
解题方法
7 . 若
,
满足约束条件
则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecabec83f54d5bbedcb0b76ec66bc974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ce9446d15aeaa4447cc23864923963.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-10-21更新
|
662次组卷
|
4卷引用:2020年高考浙江数学高考真题变式题1-5题
(已下线)2020年高考浙江数学高考真题变式题1-5题(已下线)考点9-1 线性规划与不等式性质河南省创新发展联盟2021-2022学年高二上学期第二次联考数学试题广西师范大学附属外国语学校2021-2022学年高二10月月考数学试题
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解题方法
8 . 若变量x,y满足约束条件
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd80e31cc6d4df1387c2de2d1b28cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0868e3836ba2f9f76ed5be2a2106339.png)
A.![]() | B.![]() | C.0 | D.![]() |
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9 . 已知实数x,y满足条件
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925b1fc492168f4f2b7c62587c686ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd0dc8fae19ba75b55de2bbc48402add.png)
A.1 | B.![]() | C.![]() | D.3 |
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解题方法
10 . 若实数
,
满足约束条件
,则
的最小值是_______ ,
最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11d9d3ec0e5cd89d7df992a6c2c4ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee35f9b2835c686f1fb274a8b5170eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4675bb68a4a6706c6506afdcd061bf.png)
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