21-22高一·湖南·课后作业
解题方法
1 . 运用图象法,判断函数
与
的图象的交点个数,并借助计算机作图,检验自己的判断是否正确.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
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21-22高一·湖南·课后作业
2 . 已知
,
,则函数
的图象不经过哪一象限?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbea4ca0ff380f26dfe064a4f1921504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f989737e3cc5ec3a8d6b798a05a9dd.png)
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21-22高一·湖南·课后作业
3 . 已知函数
,计算:
(1)
;
(2)
;
(3)
;
(4)
;
(5)试比较这些计算结果,说一说你的发现.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99eaeb2ab68a49074d623ffca072fed8.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f180a9e2837379ec709aec5a312f45.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e679eeda70ca6df048ed7e5991229c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494a8b850a12fdf75b4daadc87616bc9.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7d3354608b6137621a0b65040ff3fa.png)
(5)试比较这些计算结果,说一说你的发现.
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21-22高一·湖南·课后作业
解题方法
4 . 若函数
(
且
)在区间
上的最小值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcc5dda43d8b2305d3583297c932011.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/7a50188f84f379b3d0418c54cbade7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05a9c9172154da521e184862ee33cf5.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
5 . 在同一直角坐标系内作出下列各函数的图象:
,
,
,
.并说明后三个函数图象可由
的图象经过怎样的变换而得到.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe49779f2db4a075d3241052eb87d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307928976e4e9959c602b711c988481c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ae7438d3553dc98027fb98589feca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3be090ef82c2d7b77348065d8129b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe49779f2db4a075d3241052eb87d8b.png)
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21-22高一·湖南·课后作业
6 . 函数
与
有哪些相同点和不同点?函数
呢?思考分析后作出图象,并观察检验自己的判断.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b02759f340c93021a28f7d876e8a0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3efc75afc542c2e05eb6b2e7cb15f7.png)
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21-22高一·湖南·课后作业
解题方法
7 . 已知函数
(
且
)满足
.
(1)求
的值;
(2)求函数
的单调区间;
(3)求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e8352dc9e82474a4ddf89020825201.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/ea982327794d6102a747e159c6768f7e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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21-22高一·湖南·课后作业
8 . 计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ab8cdf59451010c49769ee10cf5e19.png)
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21-22高一·湖南·课后作业
9 . 用分数指数幂的形式表示下列各式(其中
,
均为正数):
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0976d72e12cbdcb5d1c4f7a77fb5f1b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9527bf50ad581976e18f082a11a7ea17.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227e8b2d92e64209d51e777f15ebe5ce.png)
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