已知
,
,求:
(1)
的值;
(2)
的值;
(3)
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbeecac10b5269a11ee376cc16340fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9195432152c89954c937e87bbadedf.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc478d5343c725f5525e05ddd3c1646.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8321c754287fdee276f079adafec6f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b162993352bc4711ce22bbb8da2641.png)
更新时间:2023-04-21 07:54:23
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】方法引领:对于问题:已知:
,
.求:
?可以这样思考:逆向运用同底数幂的乘法法则,可得
.所以
.从而可求得
.
(1)问题解决:在“方法引领”中,可求得
;
(2)利用上述方法解决问题:已知:
,
.求:
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e91b5e40e6f71ae8c714d0cd122c92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65bcaf7cc760d937ad966327297950e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c4e901ba9437a353a0a6b2d2769e19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a534585c863ddc5cfb83297eca24cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a176dc737e52283e28843bf1ada6f98b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81baf482546f298ba289d723bc21e0c3.png)
(1)问题解决:在“方法引领”中,可求得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c4e901ba9437a353a0a6b2d2769e19.png)
(2)利用上述方法解决问题:已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5350bd5705d4c23e586a0bd876e9f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c4676d6e48e916f48197f1be96a717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210a2e89be42fadd66f2a70e787408cf.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】已知
,求:
(1)
的值;
(2)
的值
(3)已知n为正整数,且
,求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2763c39735c67bfe1c2c189266b55907.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ce81c08aa3bf80b45bdadf6e1c43d3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465dcb7e026380a95144b6606930a10c.png)
(3)已知n为正整数,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2342fe65482924afe2ebdb5d87f0d8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50d924d2684dbd8dec114108ee78d83.png)
您最近一年使用:0次