1 . 当x是什么实数时,下列各式有意义?
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ec8454402ff44a030658b4a46f786c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3c9f8dc597df12c501c8d6a8a81118.png)
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2024-06-09更新
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142次组卷
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2卷引用:贵州省铜仁市第八中学2023-2024学年高一上学期期中考试数学试题
名校
2 . 已知条件
,条件
,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e14a703fe443268e81438d2e6c9eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8fe48770747071669472648b09b4106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.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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3 . 下列是真命题的是( )
A.函数![]() ![]() |
B.不等式![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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解题方法
4 . 当
时,不等式
恒成立,则实数m的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0d7f8c90ebbeb8c37fb409a121a915.png)
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5 . 已知关于
的不等式
的解集为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28815bf33079ef2712165d7eb053240a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8d7032a512f70f4cf4e1712ed8ba8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
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6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37bbf39148264423c930777f3272ca58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c62ba9a9b1734e9a71145407edbf55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b6d292996dd6c3e4b864b3ddc44ee0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 已知集合
,
,
(1)若
,求
;
(2)若
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411257edafbd8e721d5c9b4641d508f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd68167d90a6b187f58b42b32617631.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8813467f33f8611afd8efc477bf168.png)
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解题方法
9 . 已知
为奇函数.
(1)求a的值;
(2)解方程
;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b110e49060068fac84f14828661e8f3.png)
(1)求a的值;
(2)解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
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名校
10 . 已知集合
是不大于5的正整数
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca61cc2979afab1230957e8ee6cdd1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa47e2832ab4ee0388d872655fc1aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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