已知
,求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9ed38a31a738a14d695981245182ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bced6d6fbb6883623afc84fa44eb96f.png)
更新时间:2023-08-16 09:45:27
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】将一张长方形大铁皮切割成九块,切痕如下图虚线所示,其中有两块是边长都为
的大正方形,两块是边长都为
的小正方形,五块是长、宽分别是
,
的相同的小长方形,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/26/1d6d99fd-7fb7-4e64-b67e-70ab382e8a1b.png?resizew=231)
(1)用不同的代数式表示图中大长方形的面积,直接写出你能得到的等式;
(2)已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18703d241f6fe0a0dedcc815603322fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f552d03a658afcdb420031762c79cae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18703d241f6fe0a0dedcc815603322fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f552d03a658afcdb420031762c79cae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/26/1d6d99fd-7fb7-4e64-b67e-70ab382e8a1b.png?resizew=231)
(1)用不同的代数式表示图中大长方形的面积,直接写出你能得到的等式;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493dbbbcf8aecaf1b586774ad7846f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a37601aecb81fa698f020fd394d3abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20c6ab2d0f475b20bb945c1692b6c2e.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】已知
,
互为相反数,
,
互为倒数,
的绝对值等于3,求
的值.
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cf8c3f5f805fdcaa97426f618afbb1.png)
您最近一年使用:0次