1.4.1 运用立体几何中的向量方法解决平行问题
重点练
一、单选题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
A.必要不充分 | B.充分不必要 | C.充要 | D.既不充分又不必要 |
【知识点】 判断命题的必要不充分条件解读 空间位置关系的向量证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825ef7fe555434fd5c80da6ffa3f759d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87446a7f3d8663e3fa62157adcbe2835.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
【知识点】 空间位置关系的向量证明
①若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8c0db10b97a34d4bbedc199f0da705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d074f2b87a372c71972951df68a2784a.png)
②空间的任意两个向量都是共面向量.
③若两条不同直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ccc19a183b9ce7f82d2609a14b9a43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69613bda5b1face9751a8c13ae757ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251b30904978a28016e499bcfa7d2a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0928087301c0628fba2a9cd3af14f34d.png)
④若两个不同平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1c8146d084248c9c65dd8a11801905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28f433e31bac8415348dc9482b4e020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0897d8272d2f4dfe4c52a96b646afa12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74c62c14a017007a6bdfe25eada9c433.png)
其中正确的说法的个数是
A.1 | B.2 | C.3 | D.4 |
【知识点】 判定空间向量共面 空间向量基底概念及辨析 空间位置关系的向量证明
二、填空题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb56b99739068d50caf90d8e64a163f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb3fb9ea87683973255b70f28443311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff259ba50b735db32427fc0ebfbdfdaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
【知识点】 空间位置关系的向量证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/507773f572ca785263c98c96d7540ed1.png)
【知识点】 空间位置关系的向量证明
三、解答题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a6f36741b86f464be362b12bac13d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e1e4ea140260a790885868bc7a94f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b29f99026a0ea8890fcd5ad58aebfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b5be85715f868fe603eba37ca0fd94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4025ed22666217a6881e5cee62986b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4add4f2d0dc3b8832581436af6aad41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/2020/9/5/2543451081506816/2546870296297472/STEM/a74426b6c26a4c8dbbb9167124338440.png?resizew=365)
【知识点】 求空间图形上的点的坐标 空间向量数量积的应用 求平面的法向量