第二章 平面向量
2.3.1平面向量基本定理
一、选择题:在每小题给出的四个选项中,只有一项是符合题目要求的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa65926df14b5046968c1a860421b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
A.![]() | B.![]() | C.![]() | D.1 |
【知识点】 向量加法的法则解读 由向量线性运算结果求参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0634f2140761601612506eb6362924ef.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 平面向量基本定理的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841571d5a7e53366a31746637fe1f6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25f103e7388ad3aac56bfb8b445ae80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5096a7f7d4cacb04a157cfc472a015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ecd096df732146b2a79f40798cbfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5407daad0b0a876e5d9d5f5191642fad.png)
A.3 | B.2 | C.![]() | D.![]() |
【知识点】 利用平面向量基本定理求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82b6e0e0f98101a16ff516b4e4a76aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca527662b704bef1bf8c8997fb3a234e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274448a954261a868750be8ef592cd48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe4c1c0377f5bee9431b138fc18446c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 向量加法的法则解读 利用平面向量基本定理求参数
二.填空题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2521f9c8b8e538597aa38a2c1e7c07f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15bca68c046caa8f9fbc8a3ebde68c00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/12/248a35db-e078-4ebe-b8e2-ca4553e18c52.png?resizew=143)
【知识点】 用基底表示向量解读 平面向量基本定理的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7991ebaf47f3d90d2abdd1d840a5a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6335eb644513a522541b9542970e2469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fecc3eb7ac205e46e209592f5da30c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f56a22d95eab351e09da1afb8153bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6d84dfb78689bd4463067d11666cc0.png)
【知识点】 利用平面向量基本定理求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090620359ff4efc4c1e4cdc18a9b6c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e374483094e5752af17b7f3168fcda90.png)
【知识点】 平面向量基本定理的应用解读
三.解答题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b28baf17059c56ee9ad1ae4814acd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb44ee82b719bd47e4eb57b106ccbd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243bd5e612650ec5d3aa617e1aab4b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350e28b02a806d5b49df2920f3c98750.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33fbc5fe1cab5215a94f0949a0a1ba7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8dc0e8d34b1b68936a7034ed05fe630.png)
【知识点】 用基底表示向量解读 利用平面向量基本定理求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8488ec91652ad560475f6d45c8e20b.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670f6533aaf27dd575f4f26e0c5928d9.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/660f09edc91a1f08fd43a8fc672c99ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16a00ffc890ef8cfc038e5039983773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb772c564027ab1c9916db708b18139.png)
![](https://img.xkw.com/dksih/QBM/2021/4/17/2701611919998976/2703722781155328/STEM/0473be87-3f4d-4947-a7c2-998d99c226b0.png?resizew=291)
(1)用
![](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/a78f2a88c04e91e752013290c2973c3b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9795568e7c599718a29bc80cc3405233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
【知识点】 用基底表示向量解读 利用平面向量基本定理求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffe925367c72faffde11f6bb7ddc8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d8ba446d322b1bf485f10679f93e6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468e67c9589673be133645f3cacd1d99.png)
(1)求证:A,B,D三点共线;
(2)设E是线段BC中点,用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00b863991d441829e9ccbc21a796301.png)
【知识点】 用基底表示向量解读 由坐标解决三点共线问题解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66346fb74f131b217e668d44939e5c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7909220d1db380634534190b662ee0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed69ca4e533e51efcf328c7085334b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aca8e59d29771ec2c5a053ed35e438e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707a28156a14a96c771a3b933aa76d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce07427f5c4bc911abcf58e66d2d01e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd206cb7d7f0a68a1c2c1fda98eb649.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/a62560b8-1721-4623-92ee-2dd25793d1c9.png?resizew=149)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c208c4ba62786c607caaaaae86818c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec72bc0b485d5ba935535cba75a38e9.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ea2cd41d71c5721779a2fa9190727e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b128d8a85f8891446fa0d2e6fe8928e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
【知识点】 已知向量共线(平行)求参数解读 用基底表示向量解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b031e15ea73ed217f3664e11807ad9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f20ce9a9acca549be5734c42d53874f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9a95f0b99842dd29bbd1bda7bcc538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35e81fef9f11eb7a1bd2e5adb8d149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e9b57a50b128b39f838860a7f678a0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/7d524b41-5ed4-4ca4-a725-a4546b9ed42d.png?resizew=147)
(1)用
![](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/d20ec3efaa6b6ff5769e8999df5714a9.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b490db1ae519d3c69a457ecf20f51d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49854f206f14c2c17085b881211aa9cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344f8a52d80bc375ab91d6a95baca527.png)
【知识点】 用基底表示向量解读 平面向量基本定理的应用解读