名校
1 . 下列说法正确的是( )
A.若![]() ![]() ![]() ![]() |
B.若将6名教师分到3所中学任教,每所学校至少一名教师且人数互不相同,则有320种不同的分法. |
C.一组数据为148,150,151,153,153,154,155,156,156,158,163,165,则这组数据的上四分位数是156. |
D.投掷一枚质地均匀的骰子两次,记事件A={两次的点数均为奇数},事件B={两次的点数之和为4},则![]() |
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2卷引用:天津市滨海新区塘沽第一中学2023届高三下学期十二校联考(二)数学模拟试题
解题方法
2 . 果树的负载量,是影响果树产量和质量的重要因素.苹果树结果期的负载量y(单位:kg)与干周x(树干横截面周长,单位:cm)可用模型
模拟,其中
,
,
均是常数.则下列最符合实际情况的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9dfafb9e9c426b573c9362e37c7ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f74901036e0163ee8f9e88e1d952aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
A.![]() | B.模型函数的图象是中心对称图形 |
C.若![]() ![]() | D.苹果树负载量的最小值是![]() |
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2023-04-15更新
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620次组卷
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4卷引用:四川省达州市2023届高三二模数学(文科)试题
3 . 已知任意三次函数的图象必存在唯一的对称中心,若函数
,且
为曲线
的对称中心,则必有
其中函数
若实数
,
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae06c488100e31570805778b1d322e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51916868e07a85f30329a625853830e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5083f9b2b33591820778bd8b00481e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7473039810aad443d6ff7dde9b56246b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce364dec4a44ca1413551ec6ff1991f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
4 . 若函数
满足:存在非零实数
,对任意定义域内的
,有
恒成立,则称
为
函数.
(1)求证:常数函数
不是
函数;
(2)若关于
的方程
且
有实根,求证:函数
为
函数;
(3)如果函数
为
函数,那么
是否仍为
函数?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d66abb9d5cb6212adcd4869871581cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)求证:常数函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6353f4d7b72f3e7edc3d00fd91a5d488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34df202dc5d240b62fb07795ae6b261c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbb494fbcd36994843fd9117cb2ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(3)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a595336ccabc983e901e01c4bf5e4fb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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2023-04-13更新
|
243次组卷
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2卷引用:江苏省南京市第二十九中学2022-2023学年高一下学期期中数学试题
5 . 已知
是定义在
上的奇函数,
.
(1)若
时,
的最大值为2,求
的值;
(2)设直线
,
与函数
的图象分别交于A,B两点,直线
,
与函数
的图象分别交于C,D两点,若存在
,且
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a4266ae5b43bea012ec6642dfaab78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a254e9bd3ade9d9e930865a9bab5e83.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394f09f5de379c099a853364f87762a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd86badb20015aa65328fda1e43a117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7c2479c7acd6e88f9d150a769462f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd86badb20015aa65328fda1e43a117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c125527ab0e29d5c97022a5a6edf8fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83a6c0fddb9074dfc96be03b4aa24d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5134c9a4a8dd39a7c291bf9b2d2e0e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
6 . 函数
是定义在R上的奇函数,且在
上单调递增,
也是奇函数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e91676c7adfd65a76f56a0c1d4bbe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8457287c4f6bbc9816a07dfe151c5cb7.png)
A.函数![]() |
B.函数![]() |
C.函数![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
7 . 下列说法中正确的有( )
A.设函数![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.已知函数![]() ![]() ![]() ![]() |
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2卷引用:吉林省长春市农安县农安高级中学2022-2023学年高二下学期4月月考数学试题
名校
解题方法
8 . 已知函数
为
上的奇函数,且
,当
时,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b305bbd11c3b8ca42920372834df1945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966d9dd819cba29980da3700422c2497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5391593b13457454298c5ee523b40121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f981a103620ae0cd0b724618f33976af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd2e111002195cb53d1a9805a6f75c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7aae0af58dff61a5bfd07b3dcfbc3e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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518次组卷
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2卷引用:江西省100所名校最新模拟示范卷2023届高三全国统一考试数学(文)试题(四)
名校
解题方法
9 . 已知
是
上的偶函数,且当
时,
.若
, 则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94b194a693b296656b887a148fd2266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8e7413ac3019f5e06f978b1550fe33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1810427271c91b1527d0a2f5ec46bcb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca3ecbbaca8eeb1cfa8f4035f7d5726.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6卷引用:山东省聊城市2023届高三第三次学业质量联合检测数学试题
名校
10 . 下列论断中,正确的有( )
A.![]() ![]() ![]() |
B.若奇函数![]() ![]() ![]() ![]() |
C.若函数![]() ![]() ![]() ![]() ![]() ![]() |
D.向量![]() ![]() ![]() ![]() ![]() ![]() |
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2卷引用:湖南省长沙市第一中学2022-2023学年高一下学期第一次阶段性检测数学试题