2020高三上·全国·专题练习
1 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4752180cb56bb6d36bdd8bf6dabdd7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-01-27更新
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402次组卷
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3卷引用:2020届湖南省益阳市高三上学期期末数学(理)试题
2 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc792b99564920b1536851ccba023671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30580b525b61cfa8f5c8abd7997f9269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-01-12更新
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375次组卷
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3卷引用:湖南省怀化市2019-2020学年高三上学期期末数学(文)试题
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解题方法
3 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72249a08bb999e1ef48f4dbc1c933c66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-10-10更新
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298次组卷
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8卷引用:湖南省三湘名校教育联盟2018-2019学年高二下学期期末数学(文)试题
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4 . 已知集合
,集合
.
(1)若
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890b164d0a1060d19bab84e34ea3d595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b006523a3a14ece57de6df770abbada.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-02-20更新
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313次组卷
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2卷引用:湖南省长沙市第一中学2019-2020学年高一上学期期末数学试题
5 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/767dd47a80f754536ac6d969be54a201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-10-25更新
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853次组卷
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4卷引用:湖南省长沙市宁乡市2020-2021学年高二下学期期末数学试题
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6 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b09feae548337d8bcc15f68d633395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d381490baa0956cf2bdd3b21a2a43397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 .
是
的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b21208364124b5c477b2ff8df1c2e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a5815a2dbaa43eb40f689a4613619d.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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8 . 下列说法中正确的有______ .
①
.
②已知
,则
.
③函数
的图象与函数
的图象关于原点对称.
④函数
的递增区间为
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c97e9d8ccc7b69eb16e58fe6abfd46.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1f2a8c0dbd426c600ddcd15fb5da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905e7ab4c028dbc1363647e4c8e39c9f.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cf7675fc49cbdf3611ac547d85c8f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac335ef99c5163129452afd62e39a5be.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96504b5f0cfb60b998a06e91fdb18ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339bf8334ac3f6d96d101ebb48a9952e.png)
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2020-02-23更新
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292次组卷
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3卷引用:湖南省衡阳市第一中学2019-2020学年高一上学期期末数学试题
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9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68779c76b1332d194599dfc77839a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22957dfe29cca165c7b7a033dff3af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 若对定义域内任意
,都有
(
为正常数),则称函数
为“
距”增函数.若
,
是“
距”增函数,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c52d8e6a84e84b7ada833e0f4c719e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c855d10b6b766b21f40d3e5ad085dcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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