第9章平面向量
专题9.3向量基本定理及坐标表示(基础练)
一、单选题(共5小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf75493a7d337abc03c3797f7d14e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c66bbdb106edc637557c77bec137990f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8caac44a99986394bda7322e35d9cde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
A.![]() | B.![]() | C.![]() | D.1 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaeb9eded6e980e548cbf40376ab56be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa9b7caf1029925ec9c70e0fc464047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2caa17f7e44524a74bd90d5caefd29.png)
A.2 | B.3 | C.4 | D.6 |
【知识点】 平面向量线性运算的坐标表示解读 利用坐标求向量的模
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e884ca9429486026caa5e2310b0e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/2440e253-1946-49c0-bd4a-9c68a12ff6aa.png?resizew=165)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 用空间基底表示向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44436523265ad286fb1a478887b1b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b339fedccca439c192cd3d56ad6493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07544b9e4a7f55d6100b8268dfd25320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454da0c9903db64ca80e37af8886db5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 向量在几何中的其他应用解读
二、填空题(共5小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
【知识点】 由向量共线(平行)求参数解读
![](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/2f8f78256ea78c7b1eaa98a593bfe96c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c948fa4a23976e760dd074402893d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
【知识点】 已知向量共线(平行)求参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44fbffcf19a245f3428ba0c35937993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b47e7bf02b3ca16f7d96b9369e51a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dba5cc987db7f50f9b8e2d4544006d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9deabb8c3104bb704fce5f35ade2c2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
【知识点】 平面向量线性运算的坐标表示解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd46352e2fedda8c901eae0fbd026fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d3cf34df50e05d816d19ea1b3024a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0946479c941fbedaec12db71df4db991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c43d268992c40fe6e52b3ce5e7b11c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
【知识点】 用定义求向量的数量积解读 平面向量综合
三、解答题(共5小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d769ab21af5365d3c00dc617375ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22249dd883332a917ec68eaf7dd5ea23.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a06c8eae3652486cf9e416ce3a8ffc9.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
【知识点】 平面向量线性运算的坐标表示解读 向量夹角的坐标表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1887a1513aee097a396e99d7399c4e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3afb528b6095c9db39b8aa899a33427.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/d6c07df7-3117-4f63-8487-ad6539a63675.png?resizew=168)
(1)试以
![](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/4c6cbb6f308715ba2e58c11e61dc7d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d6d630148aa58959960d8568a66742a.png)
(2)求证:A,G,C三点共线.
![](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/8d09903f184d6c5109bdfdea4d857ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc6d717a3167f1fbef8df0e54569794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ccdb3ecc8764dc07c6ae2783600df47.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f68053ff5937961469fe4cccca0024.png)
(2)若A,B,C三点共线,求k的值.
【知识点】 平面向量共线定理证明点共线问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9afc299794bd812823bba2d4eafc693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d77d887bce805f9774301b642b18d1.png)
![](https://img.xkw.com/dksih/QBM/2021/1/6/2630433051795456/2633092847009792/STEM/91fe81aa-e77f-4338-abac-ec816db79a2e.png?resizew=268)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937d5bb2da17321543de74a2e2b71b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adebff9fb726cd58eda1ef994890901.png)
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a73a29b3bc238b7f2e85bd641d72305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
【知识点】 利用平面向量基本定理求参数