22-23七年级下·浙江·期末
1 . 下列四个结论,其中正确的是 ___________ .
①若
,
,则
可表示为
;
②若
的运算结果中不含
项,则
;
③若
,
,则
;
④若
,则x只能是2.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e407d5a901a5ce9f40a02ebc8338f32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d2044c4274008c51b7d35cde873624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3c6b5eafb316b170bd35eeac88f091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5a9b5acbd2b89af2dcac072b197f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f34b5e49102150ea3570b9f2b983ec4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e8871c9e1f42289021e7b23aa0ae84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ddd4c4f98bcd2c9fc5909851f07a65.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba488fd7746fe9a916f9c9a39c5dd70f.png)
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2 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af7d2f8cdefadc3fc89556dc4a7a89ad.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af7d2f8cdefadc3fc89556dc4a7a89ad.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba74902ffed76581ba6de149b9706cfd.png)
您最近一年使用:0次
2023-12-09更新
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362次组卷
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3卷引用:广东省肇庆地区2022-2023学年八年级上学期期末数学试题
3 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e455b377912b21907e2aba9b1da97b21.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572a54d6d17ddb6a08ae1ad9ed34edbc.png)
您最近一年使用:0次
4 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6b12e52e95ea1e5e30892b9a702828.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffccb50c78feddab760f1320fb3210d.png)
您最近一年使用:0次
5 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f614070a3ea37171a027f91796edb1b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2a146ccccc0eeeb13b7cf883bd97a5.png)
您最近一年使用:0次
6 . 用幂的运算性质计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52c8ed5f4e59e6e455830db1d576098.png)
您最近一年使用:0次
2023-06-28更新
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176次组卷
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3卷引用:上海市嘉定区2022--2023学年七年级下学期期末数学试题
上海市嘉定区2022--2023学年七年级下学期期末数学试题上海市松江区2023-2024学年七年级下学期期中数学试题(已下线)上海市七年级数学下学期期末模拟试卷03-2023-2024学年七年级数学下学期期末考点大串讲(沪教版)
7 . 下列计算正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-06-14更新
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147次组卷
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2卷引用:江西省赣州市南康区2023-2024学年八年级上学期期末数学试题
8 . 计算:
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680790fd16e55590df0ba2eb4180a947.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788e60d2514fdaade772caf1687f7d09.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4e3672aea086c4f0f56bc9db62af75.png)
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9 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496f03d392044363533d045a5197f45c.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496f03d392044363533d045a5197f45c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f85fbcdf94f2416b1f9c436fb0ba1d.png)
您最近一年使用:0次
10 . 下列运算正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-05-26更新
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187次组卷
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3卷引用:广东省河源市和平县2022-2023学年七年级下学期期末数学试题