解题方法
1 . ,求
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解题方法
2 . 在等式
中,如果只给定
三个数中的一个数,那么
就成为另两个数之间的“函数关系”.如果
为常数10,将
视为自变量
且
,则
为
的函数,记为
,那么
,现将
关于
的函数记为
.若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5c5cca2a9b7ad2bc0dfcb061b0b338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94657c30df4427a995d7110350c3cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5c5cca2a9b7ad2bc0dfcb061b0b338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa1d0b4b43f550a40677078367ee57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a0e656a2de8d47b9001cc32b1316eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e827c73de98b5732235619b6805ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c752c185ca3b82a8914995ccbbaa578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 下列命题中,正确的有( )
A.若![]() ![]() |
B.若![]() ![]() ![]() |
C.若不等式![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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解题方法
4 . 以下结论正确的是( )
A.已知![]() ![]() ![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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解题方法
5 . 下列判断正确的是( )
A.函数![]() ![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.为了得到函数![]() ![]() ![]() |
D.设![]() ![]() ![]() ![]() |
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6 . 某初创公司自创立以来,部分年份的年利润列表如下:
现有以下模型描述该年利润
(单位:千万元)随年份
的变化关系:①
,②
.试从这两个函数模型中选择合适的函数模型,并利用该模型预计公司的年利润首次超过10亿元的年份为( )
(参考数据
,
)
年份 | 2 | 3 | 4 | 5 |
年利润(千万元) | 1.50 | 2.25 | 3.38 | 5.06 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a945361e1596ea799f4c7fab9b2e7b76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2d75e1cc649afa5c1e174637da99c1.png)
(参考数据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282724a3b2b45f1966a91389fdcedfcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87d922f294f2696c2b12d2a7d2f8b0.png)
A.10 | B.11 | C.12 | D.13 |
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2023-12-22更新
|
511次组卷
|
4卷引用:四川省2023-2024学年高一上学期选科模拟测试数学试题
四川省2023-2024学年高一上学期选科模拟测试数学试题(已下线)【第三练】4.5.3函数模型的应用 上好三课,做好三套题,高中数学素养晋级之路(已下线)8.2 函数与数学模型-【题型分类归纳】(苏教版2019必修第一册)广东省佛山市第一中学2024届高三第一次模拟考试数学试题
名校
解题方法
7 . 已知函数
的定义域
,且对任意
,当
时,
恒成立,则称
为
上的
函数.
(1)若定义在
上的函数
为减函数,判断
是否为
上的
函数,并说明理由;
(2)若
为
上的
函数,且
,求不等式
的解集;
(3)若
为
上的
函数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e132a45de8ed534195ffb18920b6db3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc1bc250c8a6523a1be394ff48d4a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee6ac9863b9f0be7bd5a49a4075468d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若
![](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/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae55a418b4997978c4f0638c1b9f3a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3a80297256a8fa9e579a4fb7fbfa88.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0140f12a6b008fa7042ae682d85f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-12-12更新
|
191次组卷
|
3卷引用:河北省保定市部分高中2023-2024学年高一上学期12月期中考试数学试题
名校
8 . 下列命题正确的是( )
A.“![]() ![]() |
B.![]() |
C.函数![]() ![]() |
D.函数![]() ![]() ![]() ![]() |
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解题方法
9 . 已知实数a满足
,
.
(1)求实数a的取值范围;
(2)若
,
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bc7e2758fd2002fbeaef52ab14a8e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618ddbf4f91ffd36c5cedede3802e8d5.png)
(1)求实数a的取值范围;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd0d5ef0170d4d4dc056eed669807ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f293ebe90eaabc460d2e2713e4ab48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe653ed86488f8dcdf2612ac544fe2aa.png)
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10 . 给出函数
,
(1)若
,求不等式
的解集;
(2)若
,且
,求
的取值范围;
(3)若
,非零实数
,
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f18cf2aa76c59569a668ee8fb5ae420.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62acc97e485075f489e1d5e96e09958.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867f0794e209c2aa6dc1ded523427ec7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3c5462af41f417a830b88fbad13bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e1d71a91451f7086d9237c0fea607e.png)
您最近一年使用:0次