名校
1 . 大西洋鲑鱼每年都要逆游而上,游回产地产卵.研究鲑鱼的科学家发现鲑鱼的游速
(单位:
)可以表示为
,其中
表示鲑鱼的耗氧量的单位数.若一条鲑鱼游速为
时耗氧量的单位数为300,则一条鲑鱼游速为
时耗氧量的单位数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc13a607ac0c7f76d252d7cb1bb040fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53afeaf21f93091b71608d21540be239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428da355072550b119bd545caa6d163f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a51f75efed3830cadd204dc85e69f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ecd75424b351d8ecf2a311c525c77ff.png)
A.100 | B.900 | C.1200 | D.8100 |
您最近一年使用:0次
2024-03-04更新
|
466次组卷
|
5卷引用:河北省承德市2023-2024学年高一上学期期末考试数学试题
2 . 今年10月份,自然资源部联合国家林业和草原局向社会公布贡嘎山等9座山峰高程数据,其中狮子王高程数据为
,夏诺多吉高程数据为
.已知大气压强
(单位:
)随高度
(单位:
)的变化满足关系式
,
是海平面大气压强,
,则狮子王山峰峰顶的大气压强是夏诺多吉山峰峰顶的大气压强的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec8ed62b981a106eca255f21b096ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/387e1863c91ad1b9b5d28d45cf0a2d99.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501ac320d90eea554d83e8324c9d2cdf.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 定义:如果任取一个正常数
,使得定义在
上的函数
对于任意实数
,存在非零常数
,使
,则称函数
是“
函数”.在①
,②
,③
这三个函数中,为“
函数”的是__________ (只填写序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014f03c7ff417d0f58c98f21c596a6d6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
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解题方法
4 . 对于任意实数a,b,定义
设函数
,
,则函数
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62808c432d36fc087518aad821ec4844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd6be947e37552dfa0565d1f21e380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77cec3568b99d4b7a10b3ead3a60d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9075624d6fb0602ab0aceb74aa9f8b.png)
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5 . 形如
我们称为“二阶行列式”,规定运算
,若在复平面上的一个点A对应复数为
,其中复数
满足
,则点A在复平面内对应坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5440a1b5d9338efd6976a56432e100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c8894e0b37af5da23a1c1bffb32017.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 对于分式不等式
有多种解法,其中一种方法如下,将不等式等价转化为
,然后将对应方程
的所有根标注在数轴上,形成
,
,
,
,
五个区间,其中最右边的区间使得
的值为正值,并且可得x在从右向左的各个区间内取值时
的值为正、负依次相间,即可得到所求不等式的解集.利用此法求解下列问题:定义区间
、
、
、
的长度均为
,若满足
的x构成的区间的长度和为2,则实数t的取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a82ca2f8574f906b3f5f3726632fbc6.png)
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A.![]() | B.![]() | C.![]() | D.1 |
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7 . 设
表示不超过
的最大整数,如
,
,则当
时,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd216fb4f7c60aad60977cc7969519c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977353e0326dc27334a2940f1149e973.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
8 . 已知
,定义运算
,则
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7569cd7e9b31ad838230133b9bc8314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03feb50cf793fda04890a650de0d6d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb397d7d539f3eb76c4ae57ffadf9f5.png)
您最近一年使用:0次
2023-10-26更新
|
378次组卷
|
4卷引用:山东省青岛市青岛大学附属中学2023-2024学年高一上学期10月月考数学试题
山东省青岛市青岛大学附属中学2023-2024学年高一上学期10月月考数学试题福建省莆田锦江中学2023-2024学年高三上学期期中考试数学(高职班)试题(已下线)2.3二次函数与一元二次方程、不等式【第三课】(已下线)第一篇 “必拿”选择前5填空前2 专题5 各类不等式的解法【练】
名校
9 . 定义矩阵运算
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a522e4eff24da8b63bd689498b8f598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde2e564dceb57b5004c880eb3d2972f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-10-24更新
|
290次组卷
|
4卷引用:四川省部分名校2023-2024学年高三上学期10月联考文科数学试题
解题方法
10 . 空间中不共面的三个向量
,
,
可以作为空间向量的一组基底
,若
,
则称
在基底
下的坐标为
,在四面体
中,
,
,
.点
在
上.且
,
为
中点,则
在基底
下的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1ec4d8601f8c8f01c4e445887075de.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337ab4dc61186ca58bb0605cb6d02df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-10-24更新
|
105次组卷
|
2卷引用:广东省广州市东莞高级中学、东莞六中2023-2024学年高二上学期10月联考数学试题