1 . 不等式组
,表示的平面区域面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7117f1b229b123cee12e361d450afd89.png)
A.1 | B.2 | C.![]() | D.4 |
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名校
2 . 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)
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2022-10-19更新
|
102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
名校
3 . 已知
,平面区域
的面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ecba426ce0756675872eb430e95db6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a154f4289a1412cd49e9b286ae1be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831c61e274f2f53c97e2db105c743137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ecba426ce0756675872eb430e95db6.png)
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4 . 在平面直角坐标系
中,集合
所对应区域的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f13f9378bc246898263a5eb37597aa.png)
A.4 | B.8 | C.12 | D.前三个选项都不对 |
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解题方法
5 . 已知关于
,
的不等式组
表示的平面区域为
,在区域
内随机取一点
,则
的概率为______ .
![](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/c2e1b66574125e5ede9325f96ba35207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128aa322f3e76e8f03a7402bb2b2ae25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd0cb69c707d5608a3d46c37c6df378.png)
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2022-08-08更新
|
538次组卷
|
5卷引用:河南省安阳市2021届高三第四次模拟考试数学文科试题
解题方法
6 . 从区间
内任取两个数
,
,则
的概率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.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/2aa468658500142da664ca688d4d4d4d.png)
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2022-03-14更新
|
210次组卷
|
2卷引用:江西省赣州市兴国县2021-2022学年高二上学期联考数学(理)试题
名校
7 . 已知实数
,
满足
,则由该不等式组确定的可行域的面积为( )
![](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/6296648bf832f8c2d01c3971348ba5ab.png)
A.1 | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 设
为不等式组
所表示的平面区域,
为不等式组
所表示的平面区域,其中
,在
内随机取一点
,记点
在
内的概率为
.
(1)若
,求
;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369b3448daf9f55043c83f397ed227a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b99178f28034364a1acec18a401434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a293d50fbdc99d65aa1d4666f9d38a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717e5ded053d801848a0041a49e73953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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解题方法
9 . 在区间
上任取两个数,则这两个数之和大于
的概率是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c55e4f3eda94bc505f103b10bc1fee7.png)
您最近一年使用:0次