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
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243次组卷
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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