如图,已知四边形ABCD的两条对角线相交于点M,
.用平面向量证明四边形ABCD是平行四边形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89be4065f31921ae5f49aefad5b8e7d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/cbfc65b9-f098-4fd2-8f67-88d8cea8e3d5.png?resizew=174)
19-20高一·全国·课后作业 查看更多[4]
人教B版(2019) 必修第二册 逆袭之路 第六章 6.3 平面向量线性运算的应用 小结(已下线)第六章 平面向量初步 6.3 平面向量线性运算的运用(已下线)6.2.3向量的数乘运算(精讲)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)人教B版(2019)必修第二册课本习题习题6-3
更新时间:2020-02-05 23:32:49
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【推荐1】已知
,向量
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(1)如图,若四边形
为平行四边形,求点
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(2)若点
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(1)如图,若四边形
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(2)若点
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐2】已知平面向量
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(1)若
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(2)若
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(1)若
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(2)若
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【推荐1】在
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【推荐2】如图,已知梯形
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