1 . 已如命题p:
;命题q:
(
),若
是
的必要不充分条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753c9c98a20cb703966a5391bfeff214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae04683da379c1403270ac047f91ac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
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解题方法
2 . 已知
,
且
.求:
(1)
的最小值:
(2)
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a6a8d31aab4db17c7cb0b5a45289cc.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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解题方法
3 . 已知集合
,
,若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d1f96c7bf04481b8d018f7e823c95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98cf77cb1948588dce2677b1af4c7e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07241606934d6c75cf04455979d0e1b0.png)
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4 . 解关于x的不等式:
(
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b5b4517e3efb07ba7e8ca84179bfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
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5 . 若关于x的方程
的一根比2小且另一根比2大,则a的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d49b8abda035a1f915879c7b4b82f98.png)
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6 . 若命题“
,
”为假命题,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57557ca09079d027dc8ac1b472c4fa1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-12-31更新
|
160次组卷
|
3卷引用:天津市实验中学滨海学校2019-2020学年高一上学期第一次月考数学试题
7 . 已知函数
,
,若对任意
,总存在
,使得
,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36ed14976642c539a5d1ab73122e78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4206e98fa6c6b9664766f0de4afa3c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76403d7140eb0fb3942718a3f4532151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5971eb73df8b9a8987f03621740098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 下列命题正确的个数有( )
①若
,则
②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb54b1b3617ebc502cb44194cbcd1dc.png)
③对任意实数a,都有
④若
,则
.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e39ed1fa73c58f8614ab27edb32699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb54b1b3617ebc502cb44194cbcd1dc.png)
③对任意实数a,都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b407f92486b80b29adda88b12e4734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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9 . 已知全集
,集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3ec2db0306e1fee817541d10d15deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d167be863d109213bd07becd62b74d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fed3bd5bc925cf990e057f43395bff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-12-31更新
|
162次组卷
|
2卷引用:天津市实验中学滨海学校2019-2020学年高一上学期第一次月考数学试题
名校
10 . 已知函数
,
.
(1)若函数
在
有两个零点,求
的取值范围;
(2)若对于区间
内每一个
,都有
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1426f0f2beccc17f16aca384ae0ee08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad10dd42cfb44d23b62cbbab566eada0.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2ec965488c7e1cea085463c7731285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497199a00f177af4c593e0e715be97f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bfad36fe0f786f6c2a89230dad7361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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