若x=
,y=
,求(1)
和
的值;(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46d903100e4258ef742d56efdeeb156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94c7f92e59d3935408947e09ca940d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831d516adaa8d5c2549c449d96882b1c.png)
更新时间:2020-11-12 20:35:34
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解答题-计算题
|
适中
(0.65)
【推荐2】对a,b,c,d规定运算
.
(1)请计算
.
(2)若
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c8894e0b37af5da23a1c1bffb32017.png)
(1)请计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76284e3206a0d7d3c355235fda6fe087.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac48d172af6fb1b96429b81db6ffd6d4.png)
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