名校
1 . 对于定义在
上的函数
,若函数
满足:①在区间
上单调递减,②存在常数
,使其值域为
,则称函数
是函数
的“渐近函数”.
(1)判断函数
是不是函数
的“渐近函数”,说明理由;
(2)求证:函数
不是函数
的“渐近函数”;
(3)若函数
,
,求证:当且仅当
时,
是
的“渐近函数”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00be862d30a8c6bbd59f96fdffee7413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040e5d14f45a054a7835c9db471c9db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e228067dbbd535c24d7555d0bbfa19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1c68cebf2203d277f61cfdbacf175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbad4992b39aaaac00f95a1d26c2d78.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99562beeb4f995300add1887759932ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beb0c20210186411051d681225df04b.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc439cc7034b8ba8b1e8e03bacf8a90e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdef85d50578d84a92ffcc754f7afddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2019-11-14更新
|
403次组卷
|
3卷引用:上海市行知中学2018-2019学年高三上学期期中数学试题
名校
2 . 已知函数
,
,
,函数
,
,
.若对任意
,
,总存在
,
,使
成立.则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839f3b92af15e29d39cf4e6ede49c99b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a17bd7834d6f17e5f30f10ca4b562552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba75bf287f6d07d8503819868a1bab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49845d34e677e334ae412fc953e2520b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a17bd7834d6f17e5f30f10ca4b562552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba75bf287f6d07d8503819868a1bab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312299af6c40e65a1451b9cdd5005da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba75bf287f6d07d8503819868a1bab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be50451c9d408832e60109477e6dd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba75bf287f6d07d8503819868a1bab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-01更新
|
301次组卷
|
3卷引用:上海市上海师大附中2016届高三上学期期中(文科)数学试题
真题
3 . g(x),h(x)是R上的任意实值函数,如下定义两个函数(f°g)(x)和(f•g)(x)对任意x∈R,(f°g)(x)=f(g(x));(f•g)(x)=f(x)g(x),则下列等式恒成立的是
A.((f°g)•h)(x)=((f•h)°(g•h))(x) |
B.((f•g)°h)(x)=((f°h)•(g°h))(x) |
C.((f°g)°h)(x)=((f°h)°(g°h))(x) |
D.((f•g)•h)(x)=((f•h)•(g•h))(x) |
您最近一年使用:0次
2016-12-03更新
|
1378次组卷
|
2卷引用:沪教版(上海) 高三年级 新高考辅导与训练 第二部分 走近高考 第一章 集合与函数高考题选
名校
4 . 对定义在
上的函数
和常数
,
,若
恒成立,则称
为函数
的一个“凯森数对”.
(1)若
是
的一个“凯森数对”,且
,求
;
(2)已知函数
与
的定义域都为
,问它们是否存在“凯森数对”?分别给出判断并说明理由;
(3)若
是
的一个“凯森数对”,且当
时,
,求
在区间
上的不动点个数(函数
的不动点即为方程
的解).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](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/dfaa358d99c083079bdc9e2e7495cbcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27c24244b1fdbf1455087c2ebf41c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689644cb85f0b04cc7fb910b10648d4b.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8692c8a6bf3b5bfa2fcf2fb7e2480ffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a611a34cd92e1488016fc0e62052d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc0e849b72357de1cdf719a7ed5f1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a20d6714b0b3b55d19f51b362d593c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
您最近一年使用:0次
解题方法
5 . 已知函数
,实数
满足
,
,
,则
的值( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e77b72bb86a5fcd2fd8216e4cebf3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a415767156945ea8ada9ed3756019fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b7b8362964f8be2d16aefe1013966d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/141f6dc7ed44866ca4b2859eda9f9a62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad791d4ba15d2d18850a17593f18dcd.png)
A.一定大于30 | B.一定小于30 |
C.等于30 | D.大于30、小于30都有可能 |
您最近一年使用:0次
名校
6 . 函数
对于任意的
都有
,给出以下命题:
①
在
上是增函数;
②可能存在
,使得对任意的
恒成立;
③可能存在
,使得
成立;
④
没有最大值和最小值.
则正确的命题的个数为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887c4e34e1e3328a8a1c8e0883a5d1de.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
②可能存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b340eb53931fbf2601bda7cfacaccaf5.png)
③可能存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c10f1bd290659b4768e51da02fd0c.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
则正确的命题的个数为.
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
真题
7 . 已知函数
的反函数.定义:若对给定的实数
,函数
与
互为反函数,则称
满足“
和性质”;若函数
与
互为反函数,则称
满足“
积性质”.
(1) 判断函数
是否满足“1和性质”,并说明理由;
(2) 求所有满足“2和性质”的一次函数;
(3) 设函数
对任何
,满足“
积性质”.求
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a12ea6f9d2bbcc5a3d7980dbe79922d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d084dabd41709a74c74a62da0ad380ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66524db9ef3fb9bd13b5eefd33296d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6cbc100d86be097ec3c76cec2c6a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ea30e234b0f2e6aef3b9e5ccef39a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1) 判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0bae0eb94c245ca9539c75a8521241.png)
(2) 求所有满足“2和性质”的一次函数;
(3) 设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be468b6bd004b2dd043ca8f54ff3584e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
2016-11-30更新
|
980次组卷
|
3卷引用:2009年普通高等学校招生全国统一考试理科数学(上海卷)
2009年普通高等学校招生全国统一考试理科数学(上海卷)沪教版(上海) 高三年级 新高考辅导与训练 第一章 集合与函数 四、函数的综合应用(已下线)考向07 对数函数-备战2022年高考数学一轮复习考点微专题(上海专用)
2014·上海·二模
名校
8 . 对于函数
,若存在区间
,使得
,则称函数
为“可等域函数”,区间
为函数
的一个“可等域区间”.给出下列4个函数:
①
;②
; ③
; ④
.
其中存在唯一“可等域区间”的“可等域函数”为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4728362b29de88a7a9b5b5d3bf6d894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd1ca0cf68bef34f39b9701f0b56205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94a72c1a0c2801efe9f3bb1a412c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1439c562a1331c7245f7ad4c70e0b6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de73a16db57317970e8da776b78af9ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda824b37b5420579555fdacece101ec.png)
其中存在唯一“可等域区间”的“可等域函数”为( )
A.①②③ | B.②③ | C.①③ | D.②③④ |
您最近一年使用:0次
2014-04-24更新
|
2237次组卷
|
8卷引用:2014届上海市六校高三下学期第二次联考理科数学试卷
名校
解题方法
9 . 设函数
的定义域为
,有下列四个命题:
(1)若存在常数
,使得对任意
,有
,则
是函数
的最大值;
(2)若对任意
,有
,则
图象是中心对称图形,且对称中心为
;
(3)若对任意
,有
,则
图象是轴对称图形,且对称轴为
;
(4)已知
是
上的奇函数,则
.
这些命题中,真命题的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)若存在常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b0aa28b363cb79e6f8988b9b2bad7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61760987fb036f7f0b92e45a9993f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203d70696eebda923227b038be503fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ea36101bd7f0cefa20125125903e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99af89ee2b74efd406f64c6adf071dd.png)
这些命题中,真命题的个数是( )
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
名校
10 . 我们把定义在
上,且满足
(其中常数
、
满足
,
,
)的函数叫做似周期函数.
(1)若某个似周期函数
满足
且图象关于直线
对称,求证:函数
是偶函数;
(2)当
,
时,某个似周期函数在
时的解析式为
,求函数
,
,
的解析式;
(3)对于(2)中的函数
,若对任意
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20bd250f12f1e0101db05917a3959db0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eecacbdc5c2a7e7ac00daea8c448098.png)
(1)若某个似周期函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be895daebbdce508982977a77df16f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be895daebbdce508982977a77df16f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05486718d0f498abca5c2c21912bb26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78e89bf3b88c415496c232017f33196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9bf26fc3871e617d8d79e273ee7004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f02d5c8eec434a3f90348d770a2e2b2.png)
(3)对于(2)中的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9849dc6798e2c2ec12730b92117e77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63181f6f8fb4904131e9f213f42960a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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