解题方法
1 . 求函数
的定义域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6543c793ea6f1e26ff3d2c834fd521f3.png)
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2 . 请把相应的幂函数图像代号填入表格.
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/c140f78249fd4da08d96222d65735375.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/028af3360fe84ce1b7e6214228aab94a.png?resizew=124)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/fc66f7b6296a4c44ac8912ee5f2955e9.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/602d2f1b6e1f42e98002383a023646b4.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/bb06329a7ded4c75a2ad54298e9acbe2.png?resizew=131)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/187b5256bc044334b6b9538af958794d.png?resizew=120)
①
;②
;③
;④
;
⑤
;⑥
;⑦
;⑧
.
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/c140f78249fd4da08d96222d65735375.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/1184f2a1c86d48ef8d29f01c80bd9b0c.png?resizew=133)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/9d28a6aaaedc42008fd5dd94d53068f9.png?resizew=126)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/028af3360fe84ce1b7e6214228aab94a.png?resizew=124)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/fc66f7b6296a4c44ac8912ee5f2955e9.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/602d2f1b6e1f42e98002383a023646b4.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/bb06329a7ded4c75a2ad54298e9acbe2.png?resizew=131)
![](https://img.xkw.com/dksih/QBM/2021/12/23/2878917912567808/2880407576150016/STEM/187b5256bc044334b6b9538af958794d.png?resizew=120)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e87b5d998252950639557ec2b8946d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175da291995b66f7a5e4e770062fbaba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6534777c164d9da542e2c505bdba8e0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e95e9ced21d462feb723ad74690d8a2.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b87e78256e9afeb56ef82106e9d895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be763b164393b93d626b642b761d55d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1433cbc9321c0a628cc0797b8031db70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ecfcd5b50fd6948f62581fea8f0c0b5.png)
函数代号 | ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ |
图像代号 |
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3 . 已知函数
是幂函数,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd13796967d0f514ff4cdbda729ff3d.png)
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4 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef52a76592b388d6a4d16bdf61a9369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e344e87cdcd47a39773046ab464fe1.png)
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5 . 化简下列各式
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/952ad374cbeb04100b4855ad8d22b6e4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890ed462008714dc1c19ef42d0ce21ec.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69045f7c757cddcce6b3c630248f0d7.png)
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2021-12-25更新
|
815次组卷
|
6卷引用:沪教版(2020) 必修第一册 领航者 一课一练 第3章 3.2 第2课时 对数的运算性质
沪教版(2020) 必修第一册 领航者 一课一练 第3章 3.2 第2课时 对数的运算性质(已下线)综合检测(能力篇)-2021-2022学年高一数学同步知识梳理+考点精讲精练(人教B版2019必修第二册)(已下线)4.3对数A卷(已下线)3.2 对数(分层练习)-高一数学同步精品课堂(沪教版2020必修第一册)(已下线)第三章幂、指数与对数全章复习与检测卷-【倍速学习法】(沪教版2020必修第一册)(已下线)专题09对数-【倍速学习法】(沪教版2020必修第一册)
6 . 已知幂函数
的图象关于y轴对称,且在
上为严格增函数,求函数的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93bdd0e4c26ed8c004c0663c278c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
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解题方法
7 . 已知一个幂函数的图像经过点
.
(1)求该函数的表达式;
(2)判断该函数的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea1950ccdbb87a30ec5097f8dff6fe6.png)
(1)求该函数的表达式;
(2)判断该函数的单调性.
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8 . (1)求函数
的单调区间和函数图像的对称中心,
(2)求函数
的单调区间和函数图像的对称中心;若此函数是由某个幂函数平移得到,求a、b满足的条件.
[提示:(1)将函数的表达式化为部分分式,即化为
的形式]
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100fd3461a4efa35563dd4e58f3f35b9.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888a85a4865efab4075d0c844ace7b30.png)
[提示:(1)将函数的表达式化为部分分式,即化为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5839cdef8033f0d111a7a6bceaa10686.png)
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9 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eda67bc82d4375f215cd4de94bce0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c330dea47dc278fa2ba7ffd5452f990.png)
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10 . 求下列各式中
的值:
(1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ea2023b9b2e9f27b913845aff54301.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ec0dd981b09cde177509c77b4e6fed.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4572f3d570fd90ad00b95365a51491c9.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef2ba7ec832c4f224530ba1438b0169.png)
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