现定义某种新运算:对任意两个有理数a、b,有a☆b=a×|b|,有括号的先算括号里面的.如:2☆3=2×|3|=6,4☆(a+1)=4×|a+1|.
(1)计算:
☆[(﹣3)☆(﹣2)];
(2)若x>0,y<0,试化简:x☆(﹣2y).
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
(2)若x>0,y<0,试化简:x☆(﹣2y).
更新时间:2021-12-29 15:27:42
|
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】若|x|=3,|y|=5,且xy<0,求x﹣y的值.
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
【推荐2】计算(直接写出结果):
(1)
_______;
(2)
_________;
(3)
_______;
(4)
______;
(5)
______;
(6)
_____;
(7)
_____;
(8)
_____;
(9)
______.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62594452ac7972cdb1d931b751f0b673.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1659554406a9c34da97bff8649e775a2.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7aa9dc0e12ae0b3d4d705e9c205ea1.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c01a1789aa99b4abe676e795a20639.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c244c26115c9b9b9d7ce906f1151da7b.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1372353f8947ab75e80804f73e5baef4.png)
(7)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efd4e6692f5e9e9b0462fed1ae16030.png)
(8)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810db1b08abc83f25c2e271fbec66c68.png)
(9)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9e197335a23b23b02adde0b66187ef.png)
您最近一年使用:0次