名校
解题方法
1 . 若函数
在定义域内的某区间
上是严格增函数,而
在区间
上是严格减函数,则称函数
在区间
上是“弱增函数”.
(1)判断
,
在区间
上是否是“弱增函数”(不需证明)?
(2)若
(其中常数
,
)在区间
上是“弱增函数”,求
、
应满足的条件;
(3)已知
(
是常数且
),若存在区间
使得
在区间
上是“弱增函数”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e82cc461b9607e08a8b31597f6d26df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315b1a62ec3efc43575c57a801ad6585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df515c375a6cd512dafd680a2f8132e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154186900500104502219afe07839158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a29f7f6294171b824722185447384b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2021-12-16更新
|
307次组卷
|
3卷引用:上海市中国中学2020-2021学年高一上学期12月月考数学试题
解题方法
2 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c746ae829134912924bd35bd4e39275f.png)
(1)当
时,求函数
的极值;
(2)若存在
,使得
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a274b0623171972513340511781ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c746ae829134912924bd35bd4e39275f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d448e1bab2873fa8e62adb7148a3c197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099adf32792e7334032a80084e0cb584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 设函数
同时满足以下三个条件:
(1)对任意x、
,有
;
(2)对任意
,有
;
(3)
.
求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e29fea3894506d5a18f73527fc9066.png)
(1)对任意x、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce908de5c666035067c5ee98de4d96e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710328d31fdb2342b0d0f32e4e4d5f77.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81af4ea5c2cfa7b88d29c2e588bd061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/801d492de7ae12be2bf576f25c4f1ceb.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b490af3809c702cd065ed625e5c6a0a.png)
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
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4 . 设
为满足下列条件的函数
构成的集合:存在实数
,使得
.证明:
是
中的元素.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110e5b2f8a412dc6528df8da2ed66cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7dd386fdd18b3aeb067806af7f7e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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5 . 已知
,且满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d18595f770d9f60d257c94ca37da1ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac9aaa88766e37bc0e69bbaf9566c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee42a26485fbb3e2228ec442de70262.png)
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6 . 已知函数
,记
的最大值为
.当b、c变化时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71962943c649d69b312a7ba7d87fde89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f42404e45c6e5257f6f15f1da12175a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6dffa0a1557309993bb45109cb6676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6dffa0a1557309993bb45109cb6676.png)
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名校
解题方法
7 . 对于函数
,若在其定义域内存在 实数x,满足
,则称
为“局部奇函数”.
(1)若
是定义在区间
上的“局部奇函数”,求实数m的取值范围.
(2)若
为定义域R上的“局部奇函数”,求实数n的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d88a41a8c39757a1bbcc8ae9052c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1aa1af25a1687ffd40287edd53edc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fac167bab94e9b69db152bd59b86e3f.png)
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2022-11-15更新
|
750次组卷
|
6卷引用:上海市第二中学2017-2018学年高三上学期10月月考数学试题
上海市第二中学2017-2018学年高三上学期10月月考数学试题广东省深圳市高级中学2022-2023学年高一上学期期中数学试题广东省广州市海珠外国语实验中学2022-2023学年高一上学期段考(二)数学试题河南省焦作市博爱县第一中学2023-2024学年高三上学期9月月考数学试题河南省焦作市博爱县第一中学2023-2024学年高二上学期9月月考数学试题(已下线)第三章 函数的概念与性质(易错必刷40题12种题型专项训练)-【满分全攻略】(人教A版2019必修第一册)
8 . 已知a,b∈R,函数
,
.
(1)当a=1,b=0时,求方程
的根;
(2)设函数
在[-2,2]上的最大值为G(a,b),当G(a,b)取得最小值时,求2a-b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f53dca784e409fc6b92d060be2067f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055fd1d9cd5048a39e76f56215efba19.png)
(1)当a=1,b=0时,求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71607511fdd4faa9e832345ceb2a817d.png)
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20-21高三下·上海浦东新·阶段练习
名校
解题方法
9 . 设数列
是公差为d的等差数列.
(1)若
,
,讨论方程
的根的个数;
(2)若
,
,求函数
的最小值;
(3)若数列
满足:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260203bb6ece08cc7f73e13663863545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9c61839485d91809d8abbd7647c1d6.png)
,试求该数列项数n的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c1344592c925b273f2cb9b9e47ebbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5eb525bc0784307b587a1033174969.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3012337aa392709349731fb1eef5b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc72a5bf4279de5ead8f73d8301e535.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260203bb6ece08cc7f73e13663863545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9c61839485d91809d8abbd7647c1d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb4c602fc1d6d851c05869c3e78c3c1.png)
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10 . 给定凸20边形P.用P的17条在内部不相交的对角线将P分割成18个三角形,所得图形称为P的一个三角剖分图.对P的任意一个三角剖分图T,P的20条边以及添加的17条对角线均称为T的边.T的任意10条两两无公共端点的边的集合称为T的一个完美匹配.当T取遍P的所有三角剖分图时,求T的完美匹配个数的最大值.
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