21-22高一·湖南·课后作业
1 . 若定义在区间
内的函数
满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c0a7a0beadc14af6185827d2759213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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21-22高一·湖南·课后作业
2 . 物体在常温下的温度变化满足一定的规律:设物体的初始温度是
,经过一定时间
后的温度是
,则
,其中
表示环境温度,
为正常数.现有一杯用88℃热水冲的咖啡,放在24℃的房间中,如果咖啡降温到40℃需要20min,那么降温到35℃时,需要多长时间(结果精确到0.1min,参考数据:
,
)?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ccd929471d564cc9d2d96266b34d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cfd43010acffa2d7180548911fd109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212baa7c3eed6574b6edae95538a7765.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9ce71f5acf42fd196f2e01c655c20e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb749ff5fd3ad32d23c11029afa3b24.png)
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21-22高一·湖南·课后作业
3 . 设函数
定义在
上,它的图象关于直线
对称,且当
时,
,试比较
,
,
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982a04c8535a760c61a7e5f3e4beebbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61b6e08b5a49bcd7b076a3b109ed2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57eb1b9841ce8acbf2761e45ed1f5a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c051b6daf46b23d0ba9b1f91bc914b8.png)
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21-22高一·湖南·课后作业
4 . 已知函数
.
(1)判断函数
的奇偶性;
(2)判断函数
的单调性,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7135d3d74bfe887e7d7e0a3d2bfdd7bd.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2022-03-08更新
|
223次组卷
|
3卷引用:复习题四1
21-22高一·湖南·课后作业
5 . 已知幂函数
.
(1)若
的图象在
时位于直线
的上方,求实数
的取值范围;
(2)若
的图象在
时位于直线
的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b004a3a05707d51aead0978a088fdf3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ac2dec993e1dcd5d8a848298ba0080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f648f2cd0b3784602d678653c406bb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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21-22高一·湖南·课后作业
6 . 煤油在作为喷气发动机燃料之前需通过黏土去除其中的污染物.某种煤油中污染物含量为
,测得这种煤油通过长为
m的圆形黏土管道后污染物的含量
如下表:
(1)写出一个
关于
的函数解析式,使之与表中数据吻合;
(2)要使这种煤油中污染物的含量不超过原来的5%,利用(1)中得到的函数求圆形黏土管道至少要多长(精确到0.01m).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![]() | 0 | 1 | 2 | 3 |
![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)要使这种煤油中污染物的含量不超过原来的5%,利用(1)中得到的函数求圆形黏土管道至少要多长(精确到0.01m).
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21-22高一·湖南·课后作业
7 . 某工厂生产一种电脑零件,每月的生产数据如下表:
为估计以后每月该电脑零件的产量,以这三个月的产量为依据,用函数
或
(
,
为常数,且
)来模拟这种电脑零件的月产量
(
件)与月份的关系.试问哪个模拟函数较好?并说明理由.
月份 | 1 | 2 | 3 |
产量/(![]() | 50 | 52 | 53.9 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e136e7637543c8ae92c8dcd55b31924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f989737e3cc5ec3a8d6b798a05a9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b025eaaa1e9f6d20d1997a31f377fd.png)
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2022-03-08更新
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3卷引用:复习题四1
21-22高一·湖南·课后作业
8 . 求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f78e58a2004bb813534d499fd1c7270.png)
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21-22高一·湖南·课后作业
9 . 运用图象法,判断函数
与
的图象的交点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3199e7b4e66aba9f167701839e94e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cfd25dcfac4ea7ffcf40fe8931ab9b5.png)
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21-22高一·湖南·课后作业
解题方法
10 . 已知
,试比较
,
,
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84d4095047485ff8ce6cd61a8c68256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27def65b46225ac64b02a19aa5911489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0d2b7d558996d2e2a2ed1ce3011d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e3bb82b9f4e58e81f192de82fadc9.png)
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