用“※”定义一种新运算:对于任意有理数x和y,
(a为常数),若
的值为4,则a的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c182c0ba4973559ee22bbb99f1b468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71cd7c588a166dabb2be9d95c849cde.png)
更新时间:2022-08-19 09:03:12
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【推荐1】定义运算“*”,规定
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______ .
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【推荐2】对于任意两个不相等的正数
,
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______ .
![](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/b9ee7bb34f779cc88ea6aea16210e829.png)
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