计算:
(1)
.
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270760870a9796734d03cd14350781f4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28df48fbe04efabe0da5f1baa0b31d9.png)
21-22八年级下·广东广州·期中 查看更多[5]
广东省广州市越秀区2021-2022学年八年级下学期期中数学试题(已下线)专题2.18 二次根式加减混合运算50题(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(北师大版)(已下线)专题2.19 二次根式加减乘除及乘方混合运算(综合)80题(基础篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(北师大版)(已下线)专题08 二次根式的混合运算期中考题50道-【微专题】2022-2023学年八年级数学下册常考点微专题提分精练(人教版)湖南省长沙市湖南师范大学附属滨江学校2022-2023学年八年级下学期第一次月考数学试题
更新时间:2022-06-20 11:14:46
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解答题-计算题
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【推荐2】计算:
(1)(a3b4)2÷(ab2)3
(2)(x﹣1)(2x+1)﹣2(x﹣5)(x+2)
(1)(a3b4)2÷(ab2)3
(2)(x﹣1)(2x+1)﹣2(x﹣5)(x+2)
您最近一年使用:0次
解答题-证明题
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(0.85)
【推荐1】定义:
为正实数,若
,则称
为“和谐勾股数”,
为
的“兄弟勾股数”.如
,则
是“和谐勾股数”,
是
的“兄弟勾股数”.
(1)数
______“和谐勾股数”(填“是”或“不是”);
(2)已知
的三边
满足
.求证:
是“和谐勾股数”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90d7f054e8f0346479e1999622f11cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0a5f52526f85da35a0f4cc0b81c83e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b15bd315b801f71bc30b8d772098614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557741b4d5ad144f15b934bf88a9c4bc.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
(1)数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f43677db00ba65a7f96fc49627d70.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90d7f054e8f0346479e1999622f11cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe70fccc682ed477567144b364fdc88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次