21-22高一·湖南·课后作业
1 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f259d31f5906c43ac1ec4cc9e94cacb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460f2ced8eb43b8560e865b1de333079.png)
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21-22高一·湖南·课后作业
解题方法
2 . 比较
,
,
的大小:
(1)已知
,
,
,
;
(2)已知
,
,
.
![](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/071a7e733d466949ac935b4b8ee8d183.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a551a88ac426439803f564a3bbee04a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ed7fd2443ead5499d6728e85528136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7dd1be3275c4f1832eb36a0884658c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09731bab49d67f91b152be71dc6cd776.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8078eea9aabb70b6d1e5257f91771db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ced3b5ea4e755de43a5059c1747e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c4c163a464fd139620f444de6fe2d6.png)
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21-22高一·湖南·课后作业
3 . 记
,
(
且
),写出
和
的具体表达式并化简.尝试说明这里的表达式和化简结果与对数的基本恒等式
和
的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d76ee3b131ecd6aa1aacf7fb7b3eb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84518e68c9e73dee93a8a3cafce4d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df17d1b404651bf6dbc97b519d452e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3493c543f0eafc74f6a23e18869a6452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b84bc656ef4d2c8a195f5ca9a697728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899f641f54f1563dd4b6d63c0b9a720c.png)
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21-22高一·湖南·课后作业
4 . 已知函数
(
且
).
(1)判断函数
的奇偶性;
(2)判断函数
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2565084fb12a2478f500839ca6e087f6.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/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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21-22高一·湖南·课后作业
5 . 心理学家有时使用函数
来测定在时间
内能够记忆的量
,其中
表示需要记忆的量,
表示记忆率.假设一个学生有200个单词要记忆,心理学家测定在5min后该学生已经记忆了20个单词.
(1)试确定记忆率
的值;
(2)该学生10min后大约能记忆多少单词?15min后呢?
(3)该学生记忆180个单词需要多长时间?(
,
)
(4)利用数学软件画出该函数的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cd73ed5c70ec0ca5589979a491a5403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da6cb374aa53ed8752ecc3ba0161834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)试确定记忆率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)该学生10min后大约能记忆多少单词?15min后呢?
(3)该学生记忆180个单词需要多长时间?(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105f3263afba9a5bfbc9c7b821e5ad00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0fc0c574f052e63c1cac893f820ded.png)
(4)利用数学软件画出该函数的图象.
您最近一年使用:0次
21-22高一·湖南·课后作业
6 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aac4bcff94d592b114c404193b9cf42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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21-22高一·湖南·课后作业
解题方法
7 . 求下列函数的定义域:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fca8a4de300ab3f526630513697b01.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199311fb3db83d8e7cad7957a2c80f54.png)
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21-22高一·湖南·课后作业
解题方法
8 . 比较下列各组中两个数的大小:
(1)
,
;
(2)
,
;
(3)
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cfd2c8082c8685977e71f7dbfd8c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5efacc857e83f2a9909cd90c7489efa.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb6eb13282360a2277ec2a4ac5cec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aca02e5d7fa35a321b9a66a57e436b8.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b834c80413f1c6c6af717570f2900fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26bb31c886890a142df02f02090c9b2e.png)
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21-22高一·湖南·课后作业
解题方法
9 . 若函数
是区间
上的减函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f16abfcad6ad80d38bdc7d6297d62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2372f424431ce7b547a66b7d61d75421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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21-22高一·湖南·课后作业
解题方法
10 . 求下列函数的定义域:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b85c550b8566704d5d72ee140e6716.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f7e9240f98c81590312e2f7a858adf.png)
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