解题方法
1 . 某数学兴趣小组对函数
进行研究,得出如下结论,其中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fee9aae0429c2cf50579b8e338b307.png)
A.![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
2 . 已知函数
的定义域为
,若存在实数
,使得
,都
满足
,则称函数
为“三倍函数”.
(1)判断函数
是否为“三倍函数”,并说明理由;
(2)若函数
,
为“三倍函数”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139ceebb6c5513dcad6f39500e269807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be56b7ebc5ff4806ce9e4861fe74be3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59a97f9ce032517db9f401e2467315d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe5dd06b9ed45ad661ce1376283a21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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3 . 已知集合
.给定一个函数
,定义集合
,若
对任意的
成立,则称该函数
具有性质“
”.给出下列函数:①
;②
;③
;④
其中具有性质“
”的函数的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5d1aa4cc6d7420da507e3f32808d6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0500974fa4ff5245dc7516e96410d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e847907fda445c04edd732d1b77acc88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b629bea8e22de9bfc49158e2289871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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解题方法
4 . 已知函数
,
,
.设集合
,若
中的所有点围成的平面区域的面积为
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5749bb82edfb623c63ae4ec6b4d43da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77156221148913fb706a2d57d9b9100c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9c88f70db94bdfa3be83eaa17f3e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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解题方法
5 . 已知函数
图象关于
轴对称,且
,
都有
.若不等式
,对
恒成立,则
的取值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c09c5c89b0c2a92f8c4b70e69b0eada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a68ec001145a37fb7cc4d9632e11870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b6fbd08afa059e0fd6196f6a5b8c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf9290e76e1cf057b61f347b88811e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36093cc448855992b4cdcd6d34d8b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-03-12更新
|
453次组卷
|
2卷引用:安徽省芜湖市2022-2023学年高一上学期期末教学质量统测数学试题
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6 . 某工厂有甲、乙、丙、丁四个不同的车间生产电子元件,由于生产设备不同,工人在不同车间日生产量也不一定相同,但皆为整数,某日,该工厂接到一批生产订单,工厂老板想将工人合理分配到不同车间,已知甲车间的工人数与乙车间相同,丙车间的工人数是丁车间的
倍且比甲车间工人数多,甲车间与丁车间的工人数之和不少于
人且不超过
人;甲车间与丁车间每个工人的日生产量相同,乙车间每个工人的日生产量为丙车间每个工人日生产量的
倍,甲车间与丙车间每个工人的日生产量之和为
件,且甲车间每个工人的日生产量不低于丙车间每个工人日生产量的
且不超过
件;甲车间、丙车间的日生产之和比乙车间、丁车间的日生产之和少
件.则当甲、丙两车间当日生产量之和最多时,该工厂调配前往甲车间的人数为___________ 人.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b72ac611ae66b86761e080761d9aabc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6f1af4b44b2e97e8f319bab4ae9010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d75719d4744f1cf917db0e8d41cb00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eeef29baafd4c1d240bda54ee2ba906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9f167445785292a76a4e70c76470a8.png)
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7 . 集合A是由具备下列性质的函数
组成的:①函数
的值域是
.②
,
且
,都有
.
(1)判断函数
及
是否属于集合A?并简要说明理由;
(2)对于(1)中你认为属于A的函数
,试判断是否存在正数m,使函数
在区间
上的最大值为5.若存在,求出m的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f6f7ea32b59cd8beeb2d6bb74632bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c804167f54d91b6013b3888788ec1356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9a87ec5b0630e0deafd96171ae237b.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ef5892bd792dc769144e228e231a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0049b2456f5a06e0b411df5edbf40620.png)
(2)对于(1)中你认为属于A的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200798f0a10a54b52b94779322fe6ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e3d25c9f38a3cf745fed1ce3297be.png)
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8 . 函数
的函数值表示不超过
的最大整数,则
,
的值域为______ ;
,
的值域为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1550a97c21c1d71c9e95dde569668be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1550a97c21c1d71c9e95dde569668be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36227d17be74b2692cc88f68e7c1e216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
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2021-10-19更新
|
816次组卷
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5卷引用:湖北省武汉市第二中学2020-2021学年高一上学期期中数学试题
2020·全国·模拟预测
名校
9 . 已知函数
,
,其中
.若对任意的
,存在
,使得
成立,则实数
的值等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10b2fc16709a3dabf8e35fbe1027183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ee74dd3e32f1885966b95607030512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc329b32ecf0f0532d09a8a21343e8cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f985718530cae9003dd401c044ef3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d8d908773b59dd4e5056341faa2a962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3360d76294c0c33ba23192af99c8eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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10 . 已知函数:
且
.
(1)证明:
对定义域内的所有
都成立;
(2)当
的定义域为
时,求证:
的值域为
;
(3)设函数
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca507b9492083d2c881b824dc98e28ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7297210ecc4a06625860ef4215b42f7.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6870269f258c153030dc97c950698675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69b3ada8af24923589888415f4dabe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2f9766c341bc0bd1362e8e2bd9f552.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3141a4cbf5e3e12ccca84f2d0427430e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
2020-10-07更新
|
643次组卷
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2卷引用:四川省成都七中万达学校2019-2020学年高一10月月考数学试题