12-13高三·江苏无锡·开学考试
1 . 设
,函数
有意义, 实数
取值范围_________ .
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa7c1c2b681ddcfa7702665f7d06a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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12-13高三·江苏扬州·开学考试
2 . 已知集合
,
,如果
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466045a66bbc478e73da1d966a8204df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a427cc5eea083ae4b05b15a70363c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede280b7d4529ca9afb08bff174225ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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