1 . 判断正误(正确的写正确,错误的写错误)
(1)
.( )
(2)对于
,
成立.( )
(3)
.( )
(4)
.( )
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5d821b7ada3af4e7e7aa80d711b99d.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dd4bf3bbc8ec6747b1c74ebf4fac6b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3983ac2f3ac2c7d7573bf79ee3c5e6e.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc68715cf3076d00328d0c8468286b58.png)
您最近一年使用:0次
2 . 求下列各式的值.
(1)若
,求
;
(2)已知
,求
的值;
(3)若
,求
;
(4)若
,求
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01df09b18b1190afff9fd9f0c61e5a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11178ed1d74e28479a044cd57f9d5e8e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82325a62092e35d0142152cb5af1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dedb6912944d94359c738bd2684e491e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87aba578354d0f9059af78a7631abca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7a830d9753f698d6320836f83f65cf5.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ad6f6f045ad65668757e8a549acde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5095147bb690e6f8391dc2325d90302.png)
您最近一年使用:0次
2023-08-29更新
|
798次组卷
|
5卷引用:人教A版(2019) 必修第一册 数学奇书 学业评价(二十五)指数
人教A版(2019) 必修第一册 数学奇书 学业评价(二十五)指数北师大版(2019) 必修第一册 数学奇书 学业评价(二十五)指数幂的拓展 指数幂的运算性质(已下线)4.1 指数运算(精练)-《一隅三反》(已下线)模块一 专题4 指数与指数函数(1)(人教A)(已下线)4.1.1 n次方根与分数指数幂+4.1.2无理数指数幂及其运算性质【第三练】
解题方法
3 . 已知函数
在
上是增函数,
,
,
,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47267094daa20942a3e589a0463683b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac8d7ae9dc380127d303a7e8bc7384e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fab18496d6d19b28b9c95daa1bb083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef2e508229bed87703ff41e2375bbdd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 以模型
去拟合一组数据时,已知如下数据:
,
则实数k的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0e87c4d95c810b094d6e95ffc7220f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effe63caf4fbd38d17c4bb2c563bf8cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0671f6a86737ed422eafc54d3533859.png)
您最近一年使用:0次
5 . 若a,b为不等于1的正数,并且实数x,y,z满足关系式
.求证:
(1)若
,则
;
(2)若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79732af8fcd77f138ec64aa7c8beaf54.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3647d14b1cfeb2bdbefc6b468eff4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eed74920bbdf2265819707517b7c77.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eed74920bbdf2265819707517b7c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f816e00228777886e60725c8087f2cc.png)
您最近一年使用:0次
2021-11-26更新
|
235次组卷
|
2卷引用:北师大版(2019) 必修第一册 数学奇书 学业评价(二十五)指数幂的拓展 指数幂的运算性质