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1 . 给定实数集合
,
,定义运算
.设
,
,则
中的所有元素之和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b868cd0eb21378c04e4556b1575385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663bec4eafb64f3cea43a210c8ad68f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85224096b00d87bb811686e779dcc3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e37e656d05244fe3a5769cd1446725.png)
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2021-08-20更新
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654次组卷
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3卷引用:2021年全国高中数学联赛浙江赛区预赛试题