已知点
,
,在直线
上有一点
,使得
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f2f56fdc7e2d5bf2a88d6c7ab7658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d55cdeabb69f33324958431e997a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b621cd11e038008fe7638eeb2d18aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
20-21高一·全国·课后作业 查看更多[1]
(已下线)专题12+空间直角坐标系(重点练)-2020-2021学年高一数学十分钟同步课堂练(人教版必修2)
更新时间:2021-01-06 19:42:23
|
【知识点】 由空间向量共线求参数或值
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解答题-证明题
|
较易
(0.85)
名校
解题方法
【推荐2】如图,在直四棱柱
中,底面
是平行四边形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/c655e790-149a-411f-99df-e4edc129dbe2.png?resizew=186)
(1)求证:
;
(2)在线段
上是否存在点
,使得
平面
?若存在,求
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606c6e9fb76e8cab206af9bfd3030dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e93d4e968f0d173491cc2834a3c99de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/c655e790-149a-411f-99df-e4edc129dbe2.png?resizew=186)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c00b2c1b65436a95cb02b12f80df57e.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0492b25f10ae45c39f8e9838519259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95bd4a189362c68e646bb13745b7d6b.png)
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