如图,已知
为平面直角坐标系的原点,
,
.
![](https://img.xkw.com/dksih/QBM/2021/7/9/2760561971257344/2778281061425152/STEM/6f64ce5deabf419e90c13e5b41afb17e.png?resizew=159)
(1)求
的坐标;
(2)若四边形
为平行四边形,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef869895c438448f3fd8f1de95e729e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a877205dce8becbe43d3bf50348430.png)
![](https://img.xkw.com/dksih/QBM/2021/7/9/2760561971257344/2778281061425152/STEM/6f64ce5deabf419e90c13e5b41afb17e.png?resizew=159)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20ec3efaa6b6ff5769e8999df5714a9.png)
(2)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200dedc8042e076a069bc0a70b32271f.png)
更新时间:2021-08-03 16:50:12
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【推荐2】已知平面向量
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(2)若
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