已知a,b互为相反数,且
,c和d互为倒数,m的绝对值等于3,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a64103561364ac4c9460a72c9e154bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94034f2ca4ca846f7806eb8744b94c9.png)
更新时间:2022-11-02 22:07:21
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适中
(0.65)
【推荐1】已知a与b互为相反数,c、d互为倒数,x的绝对值为4,求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4de71239dea133f9030cc8f08856f3.png)
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适中
(0.65)
【推荐2】已知
,
,
,
四个数,
,满足
,其中
且为正整数.
(1)若
.
①当
,
,求
的值;
②给定有理数
,满足
,请用含
,
的式子表示
;
(2)若
,
且
,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/951836ef5e4cfd3689a94810e0f8d43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e5023cfc91a6e98679311b2bc8d3cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc5735838e43b7a229e8f45c9bfffb3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ef6f920cf01e61596caa2243af1619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3b18d23d41e5f456dfd6485feed523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
②给定有理数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7591bb0ed57e664bdc6a9dc7a0f5c7b.png)
![](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/168b3e4b1d6f04226fa2687a72a268b4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190ebe0fb8e689456b90a26b4725bf92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd47490ddfeaec8bcf617ab518c20c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ef1c18596144af96963ff0b8a41cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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适中
(0.65)
【推荐1】已知a,b互为相反数,c,d互为倒数,正数x的绝对值是2,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cbf3b75573215023b121adf5e16a66.png)
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解答题-计算题
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适中
(0.65)
【推荐2】已知代数式:2(2x+y﹣3)﹣[2x2﹣2(3xy2+x2﹣y)+4x]﹣(3xy2﹣5).
(1)化简代数式.
(2)小贤同学取x,y互为倒数的一对数值代入化简式中,计算得代数式的值为8,那么小贤同学所取的字母x和y的值分别是多少?
(1)化简代数式.
(2)小贤同学取x,y互为倒数的一对数值代入化简式中,计算得代数式的值为8,那么小贤同学所取的字母x和y的值分别是多少?
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解答题-计算题
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适中
(0.65)
【推荐2】计算:
(1)
;
(2)
;
(3)解方程:1﹣
=
;
(4)计算:49°27′52″÷4
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9c5683e6b4e3595bf2f2720836078a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e74fad89db69a6ed6ad1fa6e507005b.png)
(3)解方程:1﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e65fb994268f6ed75cd0bd097ac25c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f764596d6e91f79b24d31c8b335dcbb.png)
(4)计算:49°27′52″÷4
您最近一年使用:0次