1 . 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
.
(
)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e989c65b1aaa8812e0e8bb6983c2bd0.png)
__________ .
(
)
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63a99057532d3499597402aed424d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b8f06403d72b48453f0e7ef2968ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98761ab330c4a2e9d4c2cc7c55e7c5fe.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)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e989c65b1aaa8812e0e8bb6983c2bd0.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2018-07-02更新
|
855次组卷
|
4卷引用:2014届北京市丰台区高三一模文科数学试卷
2 . 如图所示,分别以A,B,C为圆心,在△ABC内作半径为2的扇形(图中的阴影部分),在△ABC内任取一点P,如果点P落在阴影内的概率为
,那么△ABC的面积是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/2015/7/21/1572189885661184/1572189891493888/STEM/a4e534db260041a0b72477b6f0a2b394.png?resizew=193)
您最近一年使用:0次
2016-12-03更新
|
1782次组卷
|
2卷引用:2015届北京市丰台区高三5月统一练习二文科数学试卷
3 . 设不等式组
确定的平面区域为
,在
中任取一点
满足
的概率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf73d958a5006d54a2643e50c0b56a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0879693615729728c0bad47a02e7cc2f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2011·北京丰台·一模
解题方法
4 . 从如图所示的正方形
区域内任取一个点
,则点
取自阴影部分的概率为( )
![](https://img.xkw.com/dksih/QBM/2013/4/24/1571195792982016/1571195798102016/STEM/53fbf2c7ac4f45fe822c1b3ac3ca7a23.png?resizew=201)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2013/4/24/1571195792982016/1571195798102016/STEM/53fbf2c7ac4f45fe822c1b3ac3ca7a23.png?resizew=201)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 平行四边形
中,
为
的中点.若在平行四边形
内部随机取一点
,则点
取自
内部的概率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/e742966e3711cfa53dce04022acf4bcc.png)
您最近一年使用:0次
2016-12-03更新
|
446次组卷
|
3卷引用:北京市丰台区第12中学2017-2018高三上期中数学试题