名校
1 . 已知
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b645283a702e738196e4454793061813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5146bea4e7586be7f0424786b3debb26.png)
您最近一年使用:0次
2 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd22d2389ae6f9bc51cd6b95ed521f5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/543e1e1891129b8569e085d9981abd25.png)
您最近一年使用:0次
2024八年级下·浙江·专题练习
3 . 已知
,
,求下列式子的值:
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ff75323b957b85bc5b609e402b264f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77da76c1d10f3a0843ae60264576cc2c.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a977414a3ad65caf5eee28e0cd175de.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4397c054557001e960088ce53d038c4e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d1c645599ee4cef4cc956a5030884b.png)
您最近一年使用:0次
2024八年级下·浙江·专题练习
4 . 求值:
(1)已知
,
,求
的值;
(2)已知
,
,求
的值;
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26c4b6a3f2587e8949efe4ba8bbc0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3746d8995a8b214c667a2237ca75f8.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc12fed7a6f4777c0fccc896e624281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4bb3296249d8b1ca8416d3c4a0bf75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd816b49e9062cfa267b3bc8887b81c.png)
您最近一年使用:0次
5 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a884d3ca7884b040430c05aa70a0621f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc095b49d51394d913b6d43e8a0cc9a8.png)
您最近一年使用:0次
6 . 下列计算正确的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知
,
,求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a0a54aee72aa44ce73b6308a2096c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8653af649d2a1b22f50c8529ef43136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286b55d1671bf16b83d683808fe43e70.png)
您最近一年使用:0次
2024-04-25更新
|
64次组卷
|
4卷引用:浙江省杭州市余杭区2023-2024学年八年级下学期期中数学试题
浙江省杭州市余杭区2023-2024学年八年级下学期期中数学试题浙江省杭州市萧山区南片2023-2024学年八年级下学期期中数学试题浙江省杭州市余杭区闲林中学2023-2024学年八年级下学期期中数学试题(已下线)考题猜想 12-1 二次根式(9种计算题)-2023-2024学年八年级数学下学期期末考点大串讲(苏科版)
8 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d998c681f46de0fe9685ab3a62148d.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d998c681f46de0fe9685ab3a62148d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f6bac22256156cb3cac13982eb43ce.png)
您最近一年使用:0次
2024-04-25更新
|
61次组卷
|
3卷引用:浙江省杭州市余杭区2023-2024学年八年级下学期期中数学试题
9 . 在直角坐标系中,有四个点
,
,
,
,则这四个点中到原点距离最远的点是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5532d6c5dd80ac10821366d051b8b2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2284246ceb838f58115b2cb686a5a58e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67610e1ae6b228b8901d6a825aaf6cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7547b84e91a8846d41639191ebed8b15.png)
A.P | B.Q | C.M | D.N |
您最近一年使用:0次
2024-04-25更新
|
37次组卷
|
3卷引用:浙江省杭州市余杭区2023-2024学年八年级下学期期中数学试题
10 . 化简或计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2fb8e2ef3b93c69c5b826f9e868a5e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045b86e62e034f9242168ac2d46c12b9.png)
您最近一年使用:0次