1 . 填表:
A | B | ||
A | |||
B | |||
A | B | ||
A | |||
B | |||
A | |||
A | |||
A | |||
A | |||
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解题方法
2 . 已知集合
,
求①
②
③
④
(请画出数轴表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376204b5755743ecf15692592e06bbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe4c79190f100b6c6a976f91c072e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cecf7604f5bf32eec7adc5a463653791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc3c4dc0fee68ecf5a699cac4533354a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05306cb7e109c4d3f4d0a11f28ab64c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fe92299d8bd4da70692707ac9da5ec.png)
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