如图,设
,且
,当
时,定义平面坐标系
为
的斜坐标系,在
的斜坐标系中:设
,
是分别与
轴,
轴正方向相同的单位向量,若
,记
,则在
的斜坐标系中下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f55b8836b41be612a52ca9caf97006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f51047515952b136f51e110ac3de6f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ca0fbe6fbda5d57855ee78caa84bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.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/e5253a9a71037d60059b60237824193b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4035161af783c1c882a4d998fa68e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d1308d5db144e31b4d0211c63ef52.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/11/a73b4291-fd52-444b-b7a8-f69ae3666fd5.png?resizew=186)
A.设![]() ![]() ![]() ![]() ![]() |
B.设![]() ![]() |
C.设![]() ![]() ![]() |
D.设![]() ![]() ![]() ![]() ![]() |
更新时间:2023-08-10 12:00:35
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【推荐1】对于
,有如下判断,其中正确的判断是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
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D.已知![]() ![]() ![]() ![]() ![]() |
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【推荐2】
的角
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A.![]() |
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【推荐1】下列说法中错误的是( )
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【推荐2】已知
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A.![]() | B.-1 | C.1 | D.![]() |
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【推荐1】如图,设
,且
,当
时,定义平面坐标系
为
的斜坐标系,在
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![](https://img.xkw.com/dksih/QBM/2021/6/2/2734198164643840/2782411138621440/STEM/7a966c42-9f40-489f-8185-b79fe6283248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f55b8836b41be612a52ca9caf97006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d26c9fc8cfa002f40ea3908575c8ad0.png)
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A.设![]() ![]() ![]() ![]() ![]() |
B.设![]() ![]() |
C.设![]() ![]() ![]() ![]() |
D.设![]() ![]() ![]() ![]() ![]() ![]() |
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【推荐2】两个非零平面向量
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