1 . 解方程:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c479988529e835916352483787140b0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99caaab950d880edf12451e620863c73.png)
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2 . (1)计算:
;
(2)求下列各式中
的值:
①
;
②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a219de2f25bf1b871f1a92cb22c7dc75.png)
(2)求下列各式中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012c3490ec35837739f4b158775c12f4.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06da2747058691fb49754f0ae4fd9f56.png)
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3 . 求下列各式的x的值
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c70a7467692c23310b21710706240b2.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c70a7467692c23310b21710706240b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d337799bc2ab228ce8a60d465135fba.png)
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4 . 求x的值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba1b1a49e58304543d9f93b43fcb7b8.png)
您最近一年使用:0次
2024-05-19更新
|
168次组卷
|
3卷引用:陕西省安康市2023-2024学年七年级下学期期中数学试题
5 . (1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b85d6f50ce1ad5135e03b2328128337.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1ce7ba6b803bc423a3508f6dbe0cde.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca184040d86668f2dfb597e3bb711bdc.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c9290643fa6b79ba27bd2dfa9a94f7.png)
您最近一年使用:0次
6 . 已知
,
,z是
的平方根,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d148b9a135230c040ba5b8b11d63df5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d90f3797d645f7eabe6b652efe0b1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c74db99b027b90c1e2b79397b4d24dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1433c8103033c67232f2f9ae189608d.png)
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7 . (1)计算:
.
(2)求实数
:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb1c5329b916290b57b04eaec19b716.png)
(2)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/849066b346a23d654ab29cd405a5dc84.png)
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8 . (1)计算:
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22356c0a4a6d5aa85f548e12abe4a067.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48ca970d80d45f6ea51af26911ee5fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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9 . 已知直线
与坐标轴围成的三角形的面积为4,则此直线的解析式为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebb3b7f47e0decd48e64cb32aaa5903.png)
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10 . 解方程(组):
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b91cde416932ab11bac9064d5b7b1f.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b91cde416932ab11bac9064d5b7b1f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94e2dd8a179c1b3181a41c9088cc7c6.png)
您最近一年使用:0次