1 . 小明研究函数
的图象与导函数,经查阅资料,发现
具有下面的性质:若函数
在
上的导函数为
,且
在
上也存在导函数,则称函数
在
上存在二阶导函数,简记为
.若在区间
上
,则称函数
在区间
上为“凹函数”.请你根据以上信息和所学知识,判断以下函数在其定义域上是“凹函数”的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affdb4e0e91ead05b2684c52f341d935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df0dd6144e9a30d1a063b690033c3f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知函数
的图象如图所示,则
的解析式可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 若函数
的定义域为
,其导函数
的图象如图所示,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238e6513f89285e3aa2bff0010a2b143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
4 . 已知函数
在
上单调递增,且
是奇函数,则满足
的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef47e951f3f50a1c72119d87101bfa4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-06-17更新
|
720次组卷
|
4卷引用:河南省部分重点高中(金科未来)2023-2024学年高二下学期5月大联考数学试题
河南省部分重点高中(金科未来)2023-2024学年高二下学期5月大联考数学试题河南省部分重点高中2023-2024学年高二下学期5月质量检测数学试题(已下线)湖南省岳阳市第一中学等多校2023-2024学年高二下学期5月月考数学试题山西省临汾市部分学校2023-2024学年高二下学期5月质量检测数学试题
5 . 将正整数12分解成两个正整数的乘积有
三种,又
是这三种分解中两数的差最小的,我们称
为12的最佳分解,当
是正整数
的最佳分解时,我们规定函数
,例如
,下列有关函数
的说法,正确的是:______ (把正确的答案题号都填上).
①
;②
;③
;④若
是一个质数,则
;⑤若
是一个完全平方数,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446ca8039ed3cc70424063ffbb54e2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085a73c2b8fb60fa810642040b599a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085a73c2b8fb60fa810642040b599a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92929613550308d597d738dc4963a2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066de86a46332d480269aa125a47c714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b842f73e28cf0a875fc9de9b93dea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066de86a46332d480269aa125a47c714.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153d72dfa6aa662b1091bc8305e59b60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ffe89e7474ffe38f5e156ed559876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3160a1358406bc85a7fbc4e6dadd8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60173658c5bffc8bf1efc74e19986901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c494f86e8b3286215fb254a0549653c.png)
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6 . 已知数列
的通项公式为
.
(1)问
是不是这个数列的项?如果是,为第几项;如果不是,请说明理由;
(2)判断数列
的增减性并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f0527640c152f0058bee8d76e0c43a.png)
(1)问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
(2)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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7 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
在
上单调递增,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
,若
为真命题,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14197438f83fb87b875e3ac0708fe4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8618df662e8bc5a9704aa2a82c60174d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7db735657e7a10db8310a04ecc1542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8 . 已知函数
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e90dad664d77724c4b3e1e1a1b047813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d384e50e0ec20bf2c2a691854bc3a5c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389f233195d7a44b87503bbc08ecdd6e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
9 . 设函数
在
内可导,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92be322987b2d29109b77e4b063c17e6.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af44d6b8465482dd05b5100806b552c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92be322987b2d29109b77e4b063c17e6.png)
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2024-02-11更新
|
444次组卷
|
2卷引用:南阳六校2021-2022学年下学期第一次联考高二理科数学试题
解题方法
10 . 已知函数在
处有极值10,则
等于
A.8 | B.-34 | C.10 | D.-33 |
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