解题方法
1 . 已知以
为起点的向量
在正方形网格中的位置如图所示,网格纸上小正方形的边长为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40cba83244c4f6b87c88859d89f252a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/13/eb6d6e73-5bd7-4400-83a9-7213c4ce15d1.png?resizew=167)
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bccdd7562a91cca3d9e166fc09117b6.png)
___________ .
②设集合
,则
表示的区域的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40cba83244c4f6b87c88859d89f252a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/13/eb6d6e73-5bd7-4400-83a9-7213c4ce15d1.png?resizew=167)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bccdd7562a91cca3d9e166fc09117b6.png)
②设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62c4fe25b9e287b28fd2c45bc964e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2022-07-11更新
|
243次组卷
|
3卷引用:北京市大兴区2021-2022学年高一下学期期末检测数学试题
名校
解题方法
2 . 已知不等式组
,表示的平面区域的面积为4.
(1)实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ ;
(2)若点
在所给平面区域内,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3188365c429f53b10f9703db6a98f0a4.png)
(1)实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff626b7fdcdec8d1b2374b80b6a68d88.png)
您最近一年使用:0次
名校
3 . 已知当实数
,
满足
时,
恒成立,给出以下命题:
①点
所形成的平面区域的面积等于
.
②
的最大值等于
.
③以
,
为坐标的点
所形成的平面区域的面积等于
.
④
的最大值等于
,最小值等于
.
其中,所有正确命题的序号是__________ .
![](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/aedbd9b6506a3560b3fd69b037e657e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/610ac65c90b6e581284b2298866fb72d.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
③以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf9304d22a3491440034660f115492a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca74e3bfe66db258ab238ecf3b08b47.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
其中,所有正确命题的序号是
您最近一年使用:0次
4 . 已知点
在不等式
所表示的平面区域内,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f32b2366f42880f563dbfed281822d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 已知
,
满足
,则不等式组表示的平面区域是__________ ,
的最小值是__________ .
![](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/5dabb47302aec58ba48fc2242fce43aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
![](https://img.xkw.com/dksih/QBM/2018/3/14/1901794874007552/1905610312409088/STEM/30f9d9faaa594ba0a13a49aa9770ee6a.png?resizew=224)
您最近一年使用:0次
6 . 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:【全国百强校】北京市第八中学2016-2017学年高一下学期期末考试数学试题
2010·山东烟台·一模
名校
7 . 若点集
,
,则
(
)点集
所表示的区域的面积为__________ .
(
)点集
所表示的区域的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c45f89a2252a152bdf6aa2fab97326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63097ba4d89850b50db6c2d9b2e0fd3c.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a33ab73327295ca80b755c171e09e0.png)
(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ad2a56052732890aad3fa3e65de2a.png)
您最近一年使用:0次
2016-12-03更新
|
399次组卷
|
5卷引用:北京市八一学校 2020~2021学年度高一12月月考数学试题
北京市八一学校 2020~2021学年度高一12月月考数学试题(已下线)2010年北京市海淀区高三下学期一模数学(文)测试(已下线)高09级清华附中考前适应性练习理科数学试卷北京市海淀区八一学校2017-2018学年高二上学期期中考试数学(理)试题(已下线)烟台市中英文学校2010届高三一模考试文科数学试题