已知a、b互为相反数,c、d互为倒数,m的绝对值等于3,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718ef6aaff8a82aab8e09fa91c521613.png)
更新时间:2023-02-03 20:27:53
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【推荐1】已知
是二元一次方程组
的解,则mn的相反数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203dfe536ac65ff8405862204fca6ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140325c8e81e25010c57e97865f31cf6.png)
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【推荐2】如果
,
互为相反数,
,
互为倒数,
是最大的负整数,则
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/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/9ea8a2406c4958314dec48c7f9976b79.png)
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【推荐2】|2﹣
|= _______ ;
的倒数是__________ ,
的相反数是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7e99cc3281f3a26a3d1f145eb90a2e.png)
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【推荐2】现定义两种新运算“
”和“
”,对任意有理数a,b,规定:
,
,例如:
,
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e126101412910e9c241c2a1237a53381.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091e86ca89e484b331fd90125a5e5af3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9788a815b7c8d1a166d95cc40aae5c65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082529109a8c33bf0e7f483afdf82ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5403ef2751f60d4fd9b3a5474eecdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ef23d3267f923c210b1f7247d3a936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e126101412910e9c241c2a1237a53381.png)
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