已知集合
为全体实数集,
或
,
.
(1)若
,求
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285bb2cb5449f7ece64d7b7c474493c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b700dc51dce8dd6f00d1d1905672d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63235766ef11e7d3c901f1362b8f7c5e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182e998ecf007bf91f5b0395e05b033d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41394b00805b48100f296832053a1e49.png)
更新时间:2022-09-26 18:44:04
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/401ef920051f9f058ca115bd2f798130.png)
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