1 . 已知x、y互为相反数且均不为0,a和b互为倒数,m是最大的负整数,那么代数式
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c2b4323bba37b0459fc4f595239b60.png)
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2 . 已知
、
互为相反数,
、
互为倒数,
的绝对值为2,那么
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451d05e72a08f9083a9a5f5f54e776e9.png)
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3 . 已知有理数a,b,c,d,e,且a,b互为倒数,c,d互为相反数,e的绝对值为2.求式子
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691d2061f2ad30202f636c81aae27d1a.png)
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4 . 请根据图示的对话解答下列问题.
______,
______.
(2)已知
,求
的值.
已知
与
互为相反数
与
互为倒数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b962fa46f533a4e1b47d5363e1bb5d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
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5 .
的倒数等于____ . 64的算术平方根是____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0235962357661e56b273b488d22a527.png)
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6 . 若
与
互为相反数,
与
互为倒数,则
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.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/651aac83bd7824706ef9075dcae6cf39.png)
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7 . 对于任意有理数a,b,定义一种新运算:
,等式右边是通常的加法、减法运算,如:
.
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e662b5901588fb9307cdfa4fcd71b985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f73a2701eed3e7d361b4c4b66b17c63.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e9077c043a81ab48d2fe3cbf692ac8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a88c7f33e363af4525e31d566e991ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-03-02更新
|
177次组卷
|
3卷引用:吉林省长春市朝阳区长春力旺实验初级中学2023-2024学年七年级下学期学期数学3月月考试题
8 . 若
、
互为相反数,
、
互为倒数,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd67e41ff7d85b183eb3813439299ad6.png)
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名校
9 . 求下列各式的值.
(1)若a与b互为相反数,c与d互为倒数,x的绝对值等于5,求
的值;
(2)若
的立方根是3,
的算术平方根是4,求
的平方根;
(3)如图,在
方格中阴影正方形的边长是 ,它的整数部分是 ,小数部分是 (小正方格的边长为1个长度单位).
(1)若a与b互为相反数,c与d互为倒数,x的绝对值等于5,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed0e3f7691e5ee31c9c92b4a8d46018.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4001cd4bf0f6870d53fe2dabd3cf45c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8026dfb85e7f0b298fe9cf3cf670f5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037f840ede17e2a54519ed0cafa426ba.png)
(3)如图,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b91b84cf6c19db7fb12b6964ba46c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/f775b194-3c46-4fcc-8efc-ef7b580646c8.png?resizew=101)
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10 . 下列一元二次方程有两个互为倒数的实数根的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-01更新
|
60次组卷
|
2卷引用:湖北省武汉市2023-2024学年九年级上学期月考数学试题