解题方法
1 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9163ebe812708ee5337d62298c2e3363.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518654eed27976e2d9f954390dda0ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813a8eed7402745fc979ca2d73390344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9163ebe812708ee5337d62298c2e3363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
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2 . 已知集合
,则A∪B=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af23549d66e17125c8fdfe535d8474ac.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
3 . 已知集合
,且
,则集合B可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9e6ad1166c7625e63b80e75b2fb1d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978b26e58e888e453e37c1258f440bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794a8597ef84db5af344193eb67b288c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80625549e1a2ba3b510ecb9034a73d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 设p:
,q:
,则p是q的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603039dfa98bca8dfa9b61efb2d1a2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a6a808c80ef957e79fe961c69866f7.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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2023-06-03更新
|
1303次组卷
|
7卷引用:辽宁省实验中学2023届高三第五次模拟数学试题
7 . 已知数列
的前
项和为
,满足:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c5d620bdc7498cff66250db633b788.png)
(1)求证:数列
为等差数列;
(2)令
,数列
的前
项和为
,若不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c5d620bdc7498cff66250db633b788.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25cbe66fe4e84b4022721122baab4a3.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f052af7ec6eabf99cbea5543397cd1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6892586ad3007e4814d2666fcc6e0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-04-26更新
|
500次组卷
|
2卷引用:辽宁省锦州市渤海大学附属高级中学2023届高三第六次模拟考试数学试题
解题方法
8 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c242a384bb577ce6d8ff999d7ea6b69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28b480591100a9c6b671b580dfd071e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-04-14更新
|
386次组卷
|
3卷引用:辽宁省县级重点高中联合体2023届高三二模数学试题
名校
解题方法
9 . 已知集合
,
,若“
”是“
”的必要不充分条件,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6c2f43fde3f76e6b61117487f1d0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ddf85792923fdb74282fc275a7cbe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-03-27更新
|
2045次组卷
|
3卷引用:辽宁省沈阳市东北育才学校2022-2023学年高三下学期高考适应性测试(三)数学试题
名校
解题方法
10 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2af7df9698aeb5b186766c4d69faa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811e75be148c8a794b2e587db57d2917.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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