若
,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a70e29230bb466f3b9b0945083a328.png)
更新时间:2021-09-05 18:34:26
|
【知识点】 根据元素与集合的关系求参数解读
相似题推荐
解答题-问答题
|
容易
(0.94)
【推荐1】设
,
,
,
,
.
(1)求
;
(2)设
,且
中有且仅有2个元素属于
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614b7dd73fc790ade70ff3f3a0fbff66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77261dee8514cb3e21fbf41ec13e8760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4d8cd9350f94bf2c21637b2ee9e56a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a282d6827a10c00c0444dc9ca169b3ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a432064c002c42a73b9f35e63b866624.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c0ef898abddbf4ec1032de3c34d04c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d48f3d48f7992d2477550b3394dc430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
容易
(0.94)
名校
解题方法
【推荐2】已知集合
,若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25fb3c24ad3e398a602650d59c2a97cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2faf3937abcb6a59071c17bc6bb10f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次