名校
解题方法
1 . 以下四个命题:
①函数
最小值为
;
②方程
没有整数解;
③若
,则
;
④不等式
的解集为
.
其中真命题的个数为( )
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff12d958590c783a57670dca7ad0a57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
②方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da17a872f78e31d056a0e7fcaa5c79e.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11208030a2f7555328c68956a8c0ca05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efa8c67c04d16b7e2d20f9fd90264ea.png)
④不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6c2facc9a0277ad35d3b88ed3cf2ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
其中真命题的个数为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-13更新
|
451次组卷
|
3卷引用:上海市五爱高级中学2023-2024学年高一上学期期末考试数学试卷
上海市五爱高级中学2023-2024学年高一上学期期末考试数学试卷上海市四校(复兴高级中学、松江二中、奉贤中学、金山中学)2024届高三下学期3月联考数学试卷(已下线)上海市四校(复兴高级中学、松江二中、奉贤中学、金山中学)2024届高三下学期3月联考数学试题变式题11-16
名校
解题方法
2 . 若
的最小值是3,则实数a的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7312128c952aefcdcbb3c73edb753df.png)
A.5或8 | B.![]() | C.![]() | D.![]() |
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名校
解题方法
3 . 设集合
存在正实数
,使得定义域内任意x都有
.
(1)若
,证明:
;
(2)若
,且
,求实数a的取值范围;
(3)若
,且
,求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76a293f8a5cb9cb0d905ca25a01faefc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b452eaa74ef4e90a6661350333df7e49.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb1ba12c3538ad16ac98407658246f0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021f43d4d536af9301adad72758d3355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764df344e05f8ef1a97b346ddf44a5a0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7974d7d586f9697ad00b34ce5ada820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9511a2031188decf655cdfc0302b4740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e915b67f8f747698b8b46d37bc453667.png)
您最近一年使用:0次
名校
4 . 已知函数
的表达式为
.
(1)证明:当
时,函数
在
上是严格增函数;
(2)判断函数
的奇偶性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac9ef7fba784e4dbcb818a4bbedab06.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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5 . 对于函数
,若在定义域内存在实数
,满足
,其中为
整数,则称函数
为定义域上的“阶
局部奇函数”.
(1)已知函数
,试判断
是否为
上的“2阶局部奇函数”?并说明理由;
(2)若
是
上的“1阶局部奇函数”,求实数
的取值范围;
(3)若
,对任意的实数
,函数
恒为
上的“
阶局部奇函数”,求整数k取值的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce1d4abbd2314b1a9917cac3a4a98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5397ee1eb6d157f6ec1e7a878f8d16e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df6b355d7b11a9b9340d7192535cdd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30a5498bb0236a2bb04ae38329b408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dec6cab6d5b5726fcbe9dfae0aec755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad2f0f1ba668701d4bf3bf856230bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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6 . 已知函数
,若方程
有3个不同的根,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a4685b089d1dbdfe6510964c404ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
7 . 设函数
的表达式为
.
(1)用单调性的定义证明:函数
在
上为严格减函数;
(2)若关于x的方程
在
上有解,求实数m的最大值;
(3)是否存在负数
,使得
成立.若存在,求出
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77735219de6cba682378dee5712988c.png)
(1)用单调性的定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5808422a5f4c2c172e2d0a4e89893b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
(3)是否存在负数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51bc02e0e7be3c3e626b3e7fde75f7fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
解题方法
8 . 设函数
的表达式为
(
且
)
(1)判断函数
的奇偶性,并说明理由;
(2)若
,证明:
是一个常数;
(3)在(2)的条件下,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05a6855ef66004aade9a281cd7c6b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e108638ae5a58146db45291064fdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491b48dbb284e176596caa752fdd0099.png)
(3)在(2)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d24d8658766f5744e37d1c4aaf3e69.png)
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解题方法
9 . 若函数
在区间
上的函数值的集合恰为
,则称区间
为
的一个“
区间”.设
.
(1)若函数
在区间
上是严格增函数,请直接写出区间
(一个即可);
(2)试判断区间
是否为函数
的一个“
区间”,并说明理由;
(3)求函数
在
内的“
区间”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e5aa1bde431ba57857f6b30033095e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f69506035da4e8d4adaf6d2fb24218.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)试判断区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745eb631342dcfee91d7d7e8ccb4375b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
您最近一年使用:0次
10 . 已知
,其中
是常数,
.
(1)判断函数
的奇偶性,请说明理由;
(2)若对任意
,均有
,求所有满足条件的实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd870f1f669420f3c8caf96faec7cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963b11b722d4b7e8b5f048954166673f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次