1 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a011a99f5939fb9d97eb80afa0d0bb4a.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6356fc2439b2d416f3c7dbf36badf4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a011a99f5939fb9d97eb80afa0d0bb4a.png)
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2 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a43a33d415a632b61ce281028d30ba4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44c6d0843fb0e94328b235d7d12ab95.png)
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3 . 已知:
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca41e4d5dcbd74d183f533b949e1b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b234d07533b8315337865dce24a31a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
您最近一年使用:0次
2024-04-20更新
|
293次组卷
|
3卷引用:江苏省无锡市锡山区查桥中学2023-2024学年七年级下学期3月月考数学试题
4 . (1)
;
(2)先化简,再求值:
,其中
,
为方程
的两个实数根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98946d35bd6b1768df03f5c2a7923cc0.png)
(2)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1644a4918b6520127938086ec28545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f914e833a2aea29b04c29a78fbdcb5.png)
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名校
5 . 计算下列各题:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014a8caaa44a03ce02187fab129eaee4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b58fec7421b4e6bc079ccd920af1e737.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ca8ec27118ca47420aa9be17a1d5db.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512fb57637ba4f8ff68ee39f5300c15e.png)
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名校
6 . 下列各式中,计算结果正确的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a117ac9c2219090f6bea2884831dfcea.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a117ac9c2219090f6bea2884831dfcea.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4df965468880a94d86fa958127a6fc5.png)
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8 . 如果一个正整数能表示为两个正整数的平方差,那么称这个正整数为“智慧数”.例如
,
,
,3,7,16就是三个智慧数.在正整数中,按照从小到大的顺序排列,第7个智慧数是______ ,第2024个智慧数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f250a03be85f732ca43a2122de9c74d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc62880fe667447f8118505fc6d157dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86423fa7639e143883a4a4e02a7a57.png)
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9 . 先化简,再求值:
,其中
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf4c0edc5fa80c556391d58a4da0872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
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10 . 化简
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91e014fbbbd3f80c4fb7e054353cf29.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3423e01a5cbf3addb203e0c53eb36d79.png)
您最近一年使用:0次