如果
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a78fe3471e241b1c00c691719c777a.png)
_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fea78c83ea6d6187fba33aab029596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a78fe3471e241b1c00c691719c777a.png)
更新时间:2023-12-16 10:01:23
|
相似题推荐
填空题
|
适中
(0.65)
【推荐2】如图,在
中,∠B=90°,
,点D在边AB上,沿CD将
折叠,使边BC与AC重合,点B落在了点
处;沿
将
折叠,点A落在了点
处看,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d754107dc33b6c848db7a459a68579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73636989e83905f8800a865c2b608c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da650ee630c36fd5ce9abb4fb826df7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42357598a706021b7328cd05f716c90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854713852305408/2858764040921088/STEM/b67d24ce-2eac-4379-a8b9-24fd7c187d6a.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】阅读下列材料:我们知道
,因此将
的分子分母同时乘以
,分母就变成了4,即
,从而可以达到对根式化简的目的.根据上述阅读材料解决问题:
若
,则代数式
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287f10de01e4d92cc91eb51bb2c10e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039f6e7df4502521a84c791efb50ee20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6612d35ed52e5e28da9ee4cba4fd5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/678493f51c5e7aa25c916d353cd2f91d.png)
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5137ccb854d37449484fdcc3516e54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338cfa54db1878761afdd7cb77625553.png)
您最近一年使用:0次