计算或化简:
(1)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/426d0fa0351d7a44066c32074d8fddbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72783b4f66791fae84234f4906306266.png)
2019·江苏扬州·中考真题 查看更多[6]
江苏省扬州市2019年中考数学试题(已下线)专题03 数与式之解答题《备战2020年中考真题分类汇编》(江苏省)2022年江苏省无锡市江阴市祝塘中学中考数学一模试题(已下线)江苏省江阴市祝塘中学2021-2022学年九年级下学期第一次学情反馈数学试题(一模)云南省昆明市昆明润城学校2023-2024学年九年级上学期12月月考数学试题江苏省无锡市祝塘第二中学2023-2024学年九年级数学下学期第一次月月考题
更新时间:2019-06-20 16:48:37
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相似题推荐
解答题-计算题
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适中
(0.65)
名校
【推荐1】计算与化简:
(1)
;
(2)
.
(3)先化简
,然后a在-1、1、2三个数中任选一个你喜欢的数代入求值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c571d2aa1794fcd1a06fec1fc788a36d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816ae567b991aee47fd47a0e9b443814.png)
(3)先化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e957a2a543765899fefbaa42cc6307.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
【推荐2】【思考】用“>”“<”“=”“≥”“≤”填空,并探究规律:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fa9bf63a68771b22c2e9324900b09e.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73910d17d549d659aaaafbe7246bd26f.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d436b8958c2c05bb9f2c4b79d25e9da4.png)
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67df1b66aee39b30d9c21a982c663ba.png)
x>0.
【发现】用一句话概括你发现的规律;
【表达】用符号语言写出你发现的规律,并证明;
【应用】六个长方形的周长为 40,求其四条边长倒数和的最小值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2528e478bf07ac8581f2ac105261d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fa9bf63a68771b22c2e9324900b09e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611627ee5bead277b1c6b2e7cbefbf0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73910d17d549d659aaaafbe7246bd26f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d43ee5f2f303129ef26c23c354836347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d436b8958c2c05bb9f2c4b79d25e9da4.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67df1b66aee39b30d9c21a982c663ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319baf657063f9c5a4e0fbaddc3d21d2.png)
【发现】用一句话概括你发现的规律;
【表达】用符号语言写出你发现的规律,并证明;
【应用】六个长方形的周长为 40,求其四条边长倒数和的最小值.
您最近一年使用:0次