已知向量
,
,
,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45bae19f2d559ee350379bdf4bf5f941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce6db88d0486f8615f0efc741186fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5e7cd517d385f6dbe13a8b1216763b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.2 | D.3 |
更新时间:2020-02-24 11:20:10
|
【知识点】 由向量共线(平行)求参数解读
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单选题
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较易
(0.85)
【推荐1】设点
,若点P在直线
上,且
,则点
的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22bd1e626eae1cf27ee20f8c0c9923c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】已知向量
,
.若
与
平行,则实数
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd74660856e2e306a25e53febe23d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c573404a10e1d696e3f2c817ccaebe92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b91254db5ff748150f449c5cdd256c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1c1dd6b13d92f2cc2eef097e14c07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.1 | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐3】已知向量
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/865ae80b3ed630fe7f4e4673bb854a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc2d0fb8a6b049073027ccfe1dce109.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() ![]() ![]() | D.![]() ![]() |
您最近一年使用:0次