24-25高一上·全国·课后作业
解题方法
1 . 若
且
,当
,则一定有
与
共线.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177bac525befae1da05679bba3735d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11aeda90bd9777fda412249a37fc7a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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2024高一下·全国·专题练习
解题方法
2 . 判断正误,正确的写“正确”,错误的写“错误”.
(1)向量(1,2)与向量(4,8)共线.( )
(2)已知
,
,若
,则必有
. ( )
(3)若向量
,
,且
,则
.( )
(4)若向量
,
,且
,则
( )
(5)若
,
,且
,则
与
不共线. ( )
(6)若A,B,C三点共线,则向量
都是共线向量. ( )
(1)向量(1,2)与向量(4,8)共线.
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c857eec21dd64ccf0ba530883bb6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bcab0226effeccd2a336c23079bc1be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eea876996fab48cf16290c1c66a5563.png)
(3)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c857eec21dd64ccf0ba530883bb6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bcab0226effeccd2a336c23079bc1be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e63b7265fc297a0eabcb0d6a5c9dc73.png)
(4)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c857eec21dd64ccf0ba530883bb6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bcab0226effeccd2a336c23079bc1be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eea876996fab48cf16290c1c66a5563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b958a367fa2f08b6202a5a6ebf5e9f.png)
(5)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c857eec21dd64ccf0ba530883bb6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bcab0226effeccd2a336c23079bc1be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc49c18f38f1d2ea46ae523ee516f0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(6)若A,B,C三点共线,则向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c63830ae10d63921c73fc9bde6fe07.png)
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3 . 若
,则一定存在
,使得
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394518f518e8eee4c6370fdfe90e71b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82d81230b3ecc7e9b935dd41c1b74f8.png)
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4 . 若
,则
,
的方向一定相同或相反.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a1fffcf859a999880e1abe609917a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
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解题方法
5 . 已知向量
,
不共线,
为实数,则当
时,有
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5386e8f6677279c7bc44db32bd94dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c43f86ecb6bb6dfb3331b26d957d59d.png)
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6 . 若
,则A,B,C,D四点共线.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da65df9df70430d0a095297a628f04c.png)
您最近一年使用:0次