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1 . 在平面直角坐标系中,已知平面区域
,则平面区域
的面积为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e832d69cae90cd6b02393c0656752ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453c72ae6c6c1f85d5fb44a657c87a90.png)
您最近一年使用:0次
2022-10-19更新
|
105次组卷
|
3卷引用:上海市进才中学2020-2021学年高二下学期期末数学试题
2 . 已知满足条件
的点
构成的平面区域面积为
,满足条件
的点
构成的平面区域的面积为
,其中
、
分别表示不大于x、y的最大整数,例如:
,
,则
与
的关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dccf7fdc9ff5e9e6ed897ec3a716a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf85c41060e705d848ae1bfc55a9381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490a8f241b9ca8c68567b2f0e9d24120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5b0c9f395af19adf4ddceb59b55c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebe4075832661eac3a68e4943185181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知
,若不等式组
表示的平面区域的面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244711dc2b17dabfd4087dc384946427.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6c25f151cea671f13cac2815894b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bde6ed2352dac02abc2ec86f8d9b967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3bf2007903adc64d089a054c2284a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244711dc2b17dabfd4087dc384946427.png)
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4 . 不等式
表示的平面区域面积是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc33e98b55a00b2f208485f0c520f3f.png)
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5 . 如图,正方体
是一个棱长为2的空心蔬菜大棚,由8个钢结构(地面没有)组合搭建而成的,四个侧面及顶上均被可采光的薄膜覆盖,已知
为柱
上一点(不在点
、
处),
(
),菜农需要在地面正方形
内画出一条曲线
将菜地分隔为两个不同的区域来种植不同品种的蔬菜以加强管理,现已知点
为地面正方形
内的曲线
上任意一点,设
、
分别为在
点处观测
和
的仰角.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/91b53078-fca9-4f88-aa6f-95dfa0da9cdc.png?resizew=137)
(1)若
,请说明曲线
是何种曲线,为什么?
(2)若
为柱
的中点,且
时,请求出点
所在区域的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e12d2a6d79849ebf3015069e9a3770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d8047f0a8bd0cf4e250cd0fe80093b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/91b53078-fca9-4f88-aa6f-95dfa0da9cdc.png?resizew=137)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3205b1df826d63914dcb55bb3ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90df641ab645927ee577e79faf18dcdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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名校
6 . 若
且当
时,恒有
则以
为坐标点的P
所形成的平面区域的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054ac1267bc3a4996ec827ef9a2d08ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ed24b1fe7043edc64ab3f19cc54dcee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a833626194c4f728b450c1acfb3dd370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311f5d62483f30decba1277d788ce6df.png)
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名校
7 . 已知动点
的横坐标
、纵坐标
满足:①
;②
,那么当
变化时,点
形成的图形的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f21a782e9364a968c6e69ce007ef25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133ef30d7e5827cc5534daf4dba32741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-12-05更新
|
113次组卷
|
2卷引用:上海市上海交通大学附属中学2017-2018学年高二下学期3月月考数学试题
名校
8 . 动点
在直角坐标系平面上能完成下列动作,先从原点
沿东偏北
方向行走一段时间后,再向正北方向行走,但何时改变方向不定,假定
速度为10米/分钟,则当
变化时
行走2分钟内的可能落点的区域面积是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65332353ebca5cfe16f351767dfcf707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
您最近一年使用:0次
2019-12-02更新
|
168次组卷
|
3卷引用:上海市上海交通大学附属中学2017-2018学年高二下学期3月月考数学试题
名校
9 . 由方程
确定曲线所围成的区域的面积是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2551a611d6c10bb3acf3e2c8ca7ef496.png)
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10 . 不等式
表示的平面区域的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674aa7e5eb1394f6ce0e5d59d2ce5cdb.png)
您最近一年使用:0次