名校
1 . 定义在
上的函数
满足:
,且当
时,
,则函数
的零点个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102cab9727ea800ef039db5eba383355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9aa676fad54f444d64c488445c05c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0bbd9047ed7229ed297e759cb354fb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d71dffac6c5bb34308297458e8c8bd.png)
A.5 | B.6 | C.7 | D.8 |
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2020-01-19更新
|
336次组卷
|
3卷引用:重庆市南岸区2019-2020学年高一上学期期末数学试题
2 . 已知集合
,则集合
中所有元素之和为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d771d56c27d0e4af59df81a09bdf86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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2019-12-16更新
|
415次组卷
|
2卷引用:重庆市康德卷2018-2019学年高一上学期末数学试题
3 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed93a1a2af864b34728cc9bde2dfa75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-07-16更新
|
286次组卷
|
3卷引用:重庆市2019-2020学年高二下学期期末联合检测数学试题
4 . 已知集合
.
(1)求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7966839778738aefba34889d1fdfa804.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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
2019-12-16更新
|
369次组卷
|
2卷引用:重庆市康德卷2018-2019学年高一上学期末数学试题
名校
5 . 设集合
,集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c14a4101f6905a5ccae97be3a1454d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e792e2794946cad6730ab90b79c94884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
您最近一年使用:0次
名校
解题方法
6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc03ec3d78487844b44cd273efc9188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77951b8dedfd675f8d8f71e73ad01976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2020-09-06更新
|
234次组卷
|
4卷引用:重庆市第八中学2018-2019学年高二下学期期末考试数学(文)试题
名校
7 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c668db0ae95da4075189cb440e524852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-12-29更新
|
324次组卷
|
2卷引用:重庆市巴蜀中学2018-2019学年高一上学期期末数学试题
名校
8 . 设
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66487346ffce9c0cae05fcb52ceb62b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.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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2020-02-09更新
|
251次组卷
|
3卷引用:重庆市第八中学2018-2019学年高二下学期期末考试数学(文)试题
名校
9 . 计算下列式子的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56347ed40dadf794a0f95cffb040563e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b38b88036bdb0ae4570569d7a9bb8a.png)
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10 . 已知函数
,对任意的
,
,且
,则下列四个结论中,不一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0603ca134b8bb36ed51710b40808dbb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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