1 . 已知a,b,c在数轴上对应的点如图所示.
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd2432df6c8306e0380ac068e7a3565.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dabe8a423834b087bab8e8d07401247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcea0b46263f53fa9270a05b9df30992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
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2 . 已知a,b互为相反数,c,d互为倒数,m的绝对值为1,n是有理数且既不是正数也不是负数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f857d2f8425d197b3d5a36c3cd7c12.png)
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3 . 若a,b互为倒数,x,y互为相反数
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c5a7bc310d4093f54b6b6552461962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a4b7ecb4712c4d6641dde7aaa494fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18fbfee421cfa4018597b4b6790a532d.png)
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4 . 阅读以下材料,完成相关的填空和计算.
(1)根据倒数的定义我们知道,若
,则
______.
(2)计算
.
(3)根据以上信息可知:
.
(1)根据倒数的定义我们知道,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55838648d43564508c763ed487613e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4734964c38036470d1fe104eab3886f9.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c0ce2008d14ae60e279ab1c1e11013.png)
(3)根据以上信息可知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b57165475e6fb905aef128bfe40eb77.png)
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5 . 已知
,
互为相反数,
,
互为倒数,
,求
的值.
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1aaaea0449ea43cf2cd284441ecfbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc5034b11c359386554fa3ae836275a.png)
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2024-01-02更新
|
49次组卷
|
2卷引用:河北省邯郸市永年区实验中学2023-2024学年七年级上学期月考数学试题
6 . 已知
互为相反数,
互为倒数,
是最大的负整数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca31577dd76afbc1b720cdcad88ffd16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a342f0364d9a7b72a7570911a6a8385.png)
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7 . 已知
与
的值互为相反数,
互为倒数,x的绝对值是2,试求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3cdffae7eae7d724d57319774cb4723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d26f86ad030a8057af4f7cfee3c1131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63927ad0d12a6e0ad4bec5b90caec48e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea2a4c391480b00a54c80504a98f800.png)
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8 . 已知关于x方程
的解与方程
的解互为倒数,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bd21c2941a3e6a0d6a18a30bcc5df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee0e5d4dc2f906b4b2c7c0849bd1bca.png)
您最近一年使用:0次
2023-12-30更新
|
35次组卷
|
2卷引用:甘肃省陇南市礼县第六中学2023-2024学年七年级上学期第二次月考数学试题
9 . 已知:
、
互为相反数,
、
互为倒数,
的绝对值为
,求:
的值.
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368c3cdfe56cc5f4c316dcf1702615b4.png)
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名校
10 . 已知a和b互为倒数,c和d互为相反数,m的绝对值为1,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788baeaaa4e3ca8cc6ba4a03b52e468b.png)
您最近一年使用:0次