名校
解题方法
1 . 定义域为
的函数
满足
,
,且
时,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9da4fdfdddc259dcef9fdd4b826b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
A.![]() | B.![]() ![]() |
C.![]() | D.不等式![]() ![]() |
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2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8460bfd4440ead8dd7d8a5287b84f0.png)
(1)判断函数
的奇偶性;
(2)证明:函数
在区间
上单调递增;
(3)令
(其中
),求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8460bfd4440ead8dd7d8a5287b84f0.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe7bcabcfb85b89d906401bb4a64c6b.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd39a020accc12c2a2d1540207face6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8a07f439f530a67ec0ff4fbbdd9695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
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名校
3 . 已知函数
.
(1)若直线
与函数
的图象有且仅有4个交点,求实数
的取值范围;
(2)求函数
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e8114098c4a57deda4ec7d6d5a3aff.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431a9833f292cec2b85ebe93a3ced3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ec9d0f2e9d84337d0a5b7f90b9d184.png)
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名校
解题方法
4 . 已知
的定义域为
,且
恒成立.
(1)求
的值;
(2)试判断
的单调性,并用定义证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae3a16b9fab158f4d46ff236860d39e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cb3110d75667298a8173aee405a017.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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名校
解题方法
5 . 已知函数
是定义域上的奇函数,且
.
(1)判断并证明函数
在
上的单调性;
(2)令函数
,若对
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec891bf06e4df7ba161bd6ec24205a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d755fa52c87ccaf34674c18a3f4505f8.png)
(1)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
(2)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3745f8df5000ef458bb6cb193734eac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0810990931ead519c27c1278bcaa0ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f254f2d4b70cdcdcd9a7f8ef205813df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解题方法
6 . 已知函数
满足:任意给定
,都有
,且任意
,
,
,则下列结论正确的题号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9a7e92b379b93bca9b4f7b032fb61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e70db4fa015a8b4fb6da18c6959ac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae5ef85731cd913804b8ea86de3df23.png)
A.![]() | B.任意给定![]() ![]() |
C.![]() | D.若![]() ![]() |
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解题方法
7 . 已知函数
.
(1)判断并证明函数
在
上的单调性;
(2)若存在
,
,使得函数
在区间
上的值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73d72fedaf279a60c0602ab991e57fc.png)
(1)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4416fb953126a852fffbfb614025de87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31e72421c0d65e00edb2acce12abffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155f15aaf6f7846ebf5d5dd03e088838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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8 . 已知函数
的定义域为
,对任意
都有
,
,且当
时,
.
(1)求
;
(2)已知
,且
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64541d7f445079207b6f671adc7d662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f247866d4020ed309d4e4d121ce445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3e4fa30ce3e0ad3d98f0156abaf714.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65b5f9887eb121174fc58d928161696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
9 . 已知函数
是定义域为
的奇函数.
(1)求
的值;
(2)用定义证明
在
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913dc4200e7ec4f137c4e59294d7e1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628e2dd7a988cc80530e739c22b2280.png)
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解题方法
10 . 函数
是定义在
上的奇函数,且
.
(1)求
的解析式;
(2)判断并证明
的单调性;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc455fddd4c3c194a28a05b84247d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ef022cb5ccd3757adda282dccca52b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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