已知集合
,
.
(1)若
,求实数
的值;
(2)若
且
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64451c5caf283c61f9a46aa7cd8588b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94d6889c1f7cbf0d4bb1f918cd88ace.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129a886ddc9871b2d91356f352329e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
更新时间:2022-10-14 13:22:46
|
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】已知函数
的定义域为集合
,集合
.
(1)若全集
,
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56648ef773429c862db8dc6b3c19ef3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2976c0ca99f49b8ae8451a9825c8a602.png)
(1)若全集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9ee4df3cd0c5982eec8be19e136130.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】已知集合
.
(1)求
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55aac5c3ded65202e4da142f962cdc61.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab615139730a1fe0e02a580137ff22e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c1aba6c3cd0369f75eaf36c823b8fdb.png)
您最近一年使用:0次
解答题
|
较易
(0.85)
名校
【推荐3】设全集为
,集合
,
.
(1)求
;
(2)已知
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec177dacc3a68d1e0a178bcb8085170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d73de1b820a78e084318bf94f42fb0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fedf1176ff497d9fa4510e57ba90267a.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1dd6b0b695276e85d5db8ea4d8274c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781ef05d13904b9082c3d7b30aa3c2ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】含有3个实数的集合可表示为
,也可表示为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ded19c8b064a3202b2f0a02f4709d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac2f1fc383ede37e59756bad4e8fd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f241e216f46ee5887ad7c1518714b62.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐1】已知集合
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ecdefd613c9e730fb84f9044912b84.png)
(1)求
;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725120e73b643406b8ac2c668a2c75dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ecdefd613c9e730fb84f9044912b84.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2837f58fe59a0524355afd183f3ab104.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e968937d457d9e2237b401077ff224a.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】(1)设全集
,
,
,求
;
(2)在三角形ABC中,三个内角分别为A,B,C,且
,求cosA的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e14c28e74b720efb9ce38e95864252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d4a1fc5213f3eb0abb62e46d3ec3c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78622265341133d472cb5b97ede11a3c.png)
(2)在三角形ABC中,三个内角分别为A,B,C,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa69c2677ff9fe7781f9a63aa48b27e.png)
您最近一年使用:0次