已知下列命题
①若
,则
;
②向量
与
不共线,则
与
都是非零向量;
③已知
是平面内任意三点,则
;
④若
为
所在平面内任一点,且满足
,则
为等腰三角形;
⑤若向量
与
同向,且
,则
.
则其中错误命题 的序号为__________ .
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc877dbaf585b009109822ac6b479aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21a3079394b4bccce7b983d04f54093.png)
②向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5a705750fbcc49ea9296fa42cf050f.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5c1005ebd61862c398f309c728a75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
⑤若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a451c54b42a4b14aba0a58f85f7bcf2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59cd8cbfde27c2a227cc9784a33196e4.png)
则其中
更新时间:2020-02-18 19:23:29
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