1 . 函数
的函数值表示不超过
的最大整数,例如,
.下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1550a97c21c1d71c9e95dde569668be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2ae14cdf62d0a69dda9a58d1ea9640.png)
A.函数![]() ![]() |
B.若![]() ![]() |
C.![]() |
D.所有满足![]() ![]() ![]() |
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2 . 定义二元函数
,同时满足:①
;②
;③
三个条件.
(1)求
的值;
(2)求
的解析式;
(3)若
.比较
与0的大小关系,并说明理由.
附:参考公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1234f123ff32cf38037649c3ff329d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a4141252d1d5410adc4da9a3e631b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffece531ce82696c0920238efdeb113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430d72f73ef24e73a937893c26c5c854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f095fc2b6b7eb7ecdbff0a1e78dcf9b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee684bc0ac2a74bd0fb714e94245070f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad1be9af99aa2fb00f2de6a215cf1ad.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3264fcf8cfd754947a33aff79ea9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
附:参考公式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1234f123ff32cf38037649c3ff329d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b320170303e3310f9c8bb29e17d716.png)
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解题方法
3 . 已知函数
若
,且
,则下列关系式一定成立的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353372712f9b302d01c9eff8edb1d335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71152396d26b0c146e6a3c042bbdae9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
4 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e295c4c2a4a4da24edf247abd4c53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45b12c39b0486647511dcdec0579446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e2f790d89a67c47551b6ee80f988cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7日内更新
|
343次组卷
|
2卷引用:山东省淄博实验中学2023-2024学年高二下学期第二次诊断考试(6月月考)数学试题
5 . 设函数
是定义在
上的奇函数,
为其导函数.当
时,
,
,则不等式
的解集为( )
![](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/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49ac5a30da41ec879c8e1a6801fd098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
6 . 已知函数
,若实数
满足
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6e771e83a8a485d56c2d7a91d39d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ec326004f663c3eb1e6137ea798262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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解题方法
7 . 已知函数
是
上的奇函数,且过点
,对于一切正实数
,都有
. 当
时,
恒成立,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0d54423c3e960b9ce8e9303f4a4ad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff44456e5e1d5cc91392aa3901e0ae3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e036700c90418869c4880f676c207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
A.![]() |
B.![]() ![]() |
C.![]() |
D.当![]() ![]() |
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名校
解题方法
8 . 已知函数
,数列
满足
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7904757c16ce6903bd5580d2c37ed11.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3110dbede248b525d5ecff1127966538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8323901a49cac29afd7d62864f088077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ce53d78a1931364b237324fc72e592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a18d2df798894e2515f8f14b76624f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7904757c16ce6903bd5580d2c37ed11.png)
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2024-06-12更新
|
545次组卷
|
3卷引用:山东省滨州市2024届高三下学期二模数学试题
9 . 定义:设
和
均为定义在
上的函数,它们的导函数分别为
和
,若不等式
对任意实数
恒成立,则称
和
为“相伴函数”.
(1)给出两组函数,①
和
;②
和
,分别判断这两组函数是否为“相伴函数”;
(2)若
是定义在
上的可导函数,
是偶函数,
是奇函数,
,问是否存在
使得
和
为“相伴函数”?若存在写出
的一个值,若不存在说明理由;
(3)
,写出“
和
为相伴函数”的充要条件,证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090a91e4f3c8930674f98a9fa527709b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783c88951a458d5862557f2a041f817a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641d65f51ea7487fd84aa8d1fbcc3b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
(1)给出两组函数,①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125fb6edbb4d5a9f93199816b8c0a8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f45b5ff5ad4070bf0172149c660b224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2acd9e80f792e815194dd0c815f30fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a613c6202de44ac9d557e4ce75ca5ef6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f103e9b807e576b1954d91009a26d463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03318fa1c9b6a20bf3aa1630f161c6c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ee0f7141d44f242b4cf730e9fd2175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ca68c4a017731b7fe3d3e2d81da6c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
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解题方法
10 . 已知函数
,
的定义域为
,
为
的导函数,且
,
,若
为偶函数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf30dcd6d4b3ef64fec0ace10f993aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e5a2c2787afc62cd8d7e680e85b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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