1 . 已知函数
,
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70dfd3b70aab0849a459a241d904aa73.png)
(1)求
值;
(2)判断函数
的奇偶性,并用定义给出证明;
(3)用定义证明
在区间
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3efdb4474748c4862b8098482a6ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70dfd3b70aab0849a459a241d904aa73.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
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2 . 定义在R上的函数
满足:对任意的
,有
,集合A
},若“
”是“
”的充分不必要条件,则集合B可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680c32faacaf8b6cedf417da58d8f97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d16e43948093923a239ffb9275178c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2卷引用:山东省青岛市青岛第二中学2022-2023学年高一上学期期末数学试题
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解题方法
3 . 已知定义在
上函数
的图象是连续不断的,且满足以下条件:①
,
;②
,当
时,都有
;③
,则下列选项成立的是( ):
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf116ecbdb894c1d05d5b3b5203c10a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3881fa7fc347ccb2d46de69dc041907d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b6fbd08afa059e0fd6196f6a5b8c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431537df789febf4bc45e3dc23cefaf.png)
A.![]() | B.函数![]() ![]() |
C.函数![]() ![]() | D.![]() ![]() |
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2卷引用:山东省临沂第一中学文峰校区2022-2023学年高一上学期期末考数学试题
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4 . 已知定理:“若
,
为常数,
满足
,则函数
的图像关于点
中心对称”.设函数
,
.
(1)试判断
的图像是否关于点
成中心对称?说明理由;
(2)当
时,判断函数
的单调性,并求
的最大值与最小值;
(3)若对任意的
,总存在
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eaea690d5cea2826bd40a697ceac6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924237ea25896b737c0b98eb14214d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74f760aad21805d28fef51c95b0debf.png)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db76ffad3f5dc12daf1c82a1a1a3a85.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73ff5eea717ccc40a0f5eceac361509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94c113fd7763d768b5a543f60aec94a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983e07314433b8a027b766efeb2c9202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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5 . 若
且
,函数
,满足对任意的实数
都有
成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c607e167b20b9c79283d39a4c2c935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92dd2c6d95324cc6fed886d332ead747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知函数
关于直线
对称,且当
时,
恒成立,则满足
的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a46e33b6018b63fe4451e0ba8e43012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67916087ff281a7ed54fc0c7690c9190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cfc4fff0e1975533448dd6e7d3a566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
7 . 已知定义域为
的函数
是奇函数.
(1)求
的解析式;
(2)判断
单调性,并用单调性的定义加以证明;
(3)若不等式
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9f333cee2ccb2b215d93011a162f7a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3d3340eed3e13d74ed68876554b5d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db607fe43eab90952ab77d804f134e5c.png)
(1)判断并证明函数
在
上的单调性;
(2)若
,对任意
,
,都有
成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db607fe43eab90952ab77d804f134e5c.png)
(1)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ef7bea32c1bda133469b58b2fcbfc0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef1a7e7df445e5fbd2a26148163cf8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76403d7140eb0fb3942718a3f4532151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79ce7d5ed4f72f4ec8c880821a66cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22dd3a5c18e6c6a0b2bf825e9bfba3c.png)
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3卷引用:山东省青岛市胶州市第一中学2021-2022学年高一上学期期末数学试题
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9 . 已知函数
的定义域为R,且对任意a,
R,都有
,且当
时,
恒成立.
(1)证明函数
是奇函数;
(2)证明函数
是R上的减函数;
(3)若
,求x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd7701d084d2b153bbea08cfbf63413a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d43b263c92bb6d818fa5cdbe60bf66a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bb9cdb965d6a7edec46a2809099a30.png)
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解题方法
10 . 已知函数
的定义域为
,对于任意的实数
,都有
.且当
时,
.则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9dbe6c97e2ffd3d4dcd75d138fd95f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6be4ab7d32ed15c176c550d8543ab369.png)
A.![]() |
B.对于任意的![]() ![]() |
C.函数![]() ![]() |
D.若![]() ![]() ![]() |
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