已知M是满足下列条件的集合:①
,
;②若
、
,则
;③若
且
,则
.
(1)判断
是否正确,说明理由;
(2)证明:“若
,则
”是真命题;
(3)证明:若
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca05074e5a317ae45d073962bdf74dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fefe237385a2dc1b005d8dc61ef56eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7580ce638933a1c81da5e2e1b656c77a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c443466385f21cd3f06e2e4229add79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac8248bb70f9ef5b0cb7d025e05160.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de68508dc0a95fc4b5de772390260db.png)
(2)证明:“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79d04bf7882fd278b9ba53b791c156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
(3)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7580ce638933a1c81da5e2e1b656c77a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f06a4a9deb51418c20e7e7376cc807.png)
22-23高一上·上海浦东新·阶段练习 查看更多[2]
更新时间:2022-10-11 14:42:07
|
【知识点】 集合新定义
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知集合
.
(1)证明:若
,则
是偶数;
(2)设
,且
,求实数
的值;
(3)若
,试判断
是否属于集合
,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b160d5a44065a4f80802be949c646694.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f40c24c64bbb0645fcf585f4e66872.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d34afba5f43d301946429980327d3be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fad1f1fff5c82010595cc84a8806b75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9b6ad6f6fce0c84edfbc7b9802e3d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830dec0a9a6f1825b11a136bafc5e168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知
是满足下列条件的集合:①
②若
,则
,③若
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac8248bb70f9ef5b0cb7d025e05160.png)
(1)判断
是否正确,说明理由
(2)证明:若
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c4dffdf9c06c0d11d0410f194afc8c.png)
(3)证明:若
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f17b77451caf220bd4808446c5c79e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c443466385f21cd3f06e2e4229add79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ac8248bb70f9ef5b0cb7d025e05160.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143beb0df5feff68bf6dd94fdfd6b5b.png)
(2)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c4dffdf9c06c0d11d0410f194afc8c.png)
(3)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9661053f3ef4cfa926e5d5fd5c6555f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f06a4a9deb51418c20e7e7376cc807.png)
您最近一年使用:0次