名校
解题方法
1 . 设函数
,正实数
满足
,若
,则实数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf506d939c339a9ba0e88f6f4291718f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc28b16282b795281ea36cf8cac4222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e725940aaf3d305f4763322e441c454d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.4 | C.![]() | D.![]() |
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解题方法
2 . 已知实数
满足
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4d93c044d440695e43b19a69320414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 若正实数
满足
,则
的最大值为________ (用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6964f26e70afe3d425ea971d3212bb9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
4 . 若正实数
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6964f26e70afe3d425ea971d3212bb9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02c0712e98905911876bc7057110839.png)
(1)求不等式
的解集
;
(2)设
的最小数为
,正数
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02c0712e98905911876bc7057110839.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/022164f96347242da9528a8251dbe87c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421430623fadb23013d80f86bf55015b.png)
您最近一年使用:0次
2024-03-09更新
|
585次组卷
|
5卷引用:四川省成都市成实外教育集团2024届高三联考数学文科试题(二)
名校
6 . 若正实数x,y满足
,则下列结论不正确 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b00b2ec3760dddf84b7a102710708c.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
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2023-08-19更新
|
1226次组卷
|
5卷引用:四川省成都市天府新区实外高级中学2024届高三上学期10月月考数学(文)试题
名校
7 . 已知点
的坐标为
,点
是圆
上任意两个不同的点,且满足
,设
为线段
的中点,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a850dd87b47b687834c071c3779615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b9d60d9907e4ab950bc61f52ddbf70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89baa54574a5f6b948e6bba8fdcb160.png)
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2023-05-18更新
|
660次组卷
|
3卷引用:四川省成都石室中学2023届高三高考冲刺最后一卷文科数学试题
名校
解题方法
8 . 已知函数
的最大值为2.
(1)求
的值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2158dba63d9f19065966c5557cd1b70.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57179e24f5bf8b0d1f89849ba8d922f3.png)
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2023-05-02更新
|
644次组卷
|
4卷引用:四川省成都石室中学2023届高三高考冲刺最后一卷文科数学试题
9 . 如图,在平行四边形
中,点
是
的中点,点
为线段
上的一动点,若
,且
,
,则
的最大值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/b094122b-49e5-4bb5-9bc0-3974dd915a73.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2263a304d057d6d4a1f9817aa9d1b55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d561442faf959b561a8b6b46f831bcd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab1171ac6b05d8fa0bcfb6a01a78064.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/b094122b-49e5-4bb5-9bc0-3974dd915a73.png?resizew=177)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
10 . 已知函数
.
(1)若对
,
恒成立,求实数n的取值范围;
(2)若
的最小值为4,且正数a,b,c满足a+2b+c=n,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30441875481576f8b92039fed2d78951.png)
(1)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261e144f836261e4771501b7b26862f1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2820e6e888da175da63fb59e0990c8.png)
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2022-10-27更新
|
414次组卷
|
8卷引用:四川省成都市实验外国语学校2022-2023学年高三上学期11月月考文科数学试题