组卷网>知识点选题>数量积和模求平面向量夹角
显示答案
| 共计 1004 道试题
2 . 已知平面向量eqId02936c0215af4b77be0353ddc4474d4ceqId4acf79be34c744e59e87840486693e54满足,eqIdb777c6f46ee744a4bbecf8e478b570f7eqId351b30d5c6f24d15b9db9762a02f937d,若eqId97cbfb197e624a1a85256c544420ed7f,则eqIdd792cebbc78a4ef6a5a5222c971aa5d2的最大值为(   )
A.1B.eqId317ed84d205b4156847380f7e9f38b08C.eqIda2a0ce3781fa4c26b624f5966b7dee44D.2
3 . 已知向量eqIdf087b35a5011425daaafbf14a5e61064eqId5f16eb46594d47b58ffc973b5cc2dd0d满足eqIdc6363ccacff44562a38bf4e5d83d26ffeqId58bf8eee966243fd925a8d89db0da593eqIdb5b84322186c4a78ab1602df30cd472e.
(1)求eqIdf087b35a5011425daaafbf14a5e61064eqId5f16eb46594d47b58ffc973b5cc2dd0d的夹角eqId6c9518e43fd5459798a30cfc10026e3c
(2)求eqIda3d6c97f59194898a235c530af3c7c4a的值.
4 . eqId64b9b599fdb6481e9f8d9a94c102300b中,eqId790707287e604e1a97e1484c1457c054eqIdbaffac6b458f47bf9fcd80741ce2afe7eqId14715041fdb44bb5bf6b4d5728a7bcd9,点eqId2381423d4cd146cab95f55527681a766eqId517584fed25c413ba8b7bb33ffa2d5c6分别在eqIdcf2da96900c948a1b3ce7cbfd420c080eqId0627be51821d4be7b3e024a354815d64上,且eqId76635bcea43c45a58cdb3b6e6c20a1cfeqId69f09ae9c76c40f79a7edce08285237ceqIdbf5e979cba2c43038f5188ba6edfe86ceqIda91c1cc3600e4aabb12a8ccd0ca4ce8e相交于点eqIdbedf755e0fdb4d078d6859360706b163,则eqId10958afd16854e5d81794f164050d4f4______.
5 . 已知非零向量eqIdf087b35a5011425daaafbf14a5e61064eqId5f16eb46594d47b58ffc973b5cc2dd0d满足eqId98481ab223fe4d749251bb4032102b01,且eqId872129a304644d9f8b83c74bd00f459c,则eqIdf087b35a5011425daaafbf14a5e61064eqId5f16eb46594d47b58ffc973b5cc2dd0d的夹角为(   )
A.eqId236bfe74f1024849b3818a5cd741f299B.eqId2cb51764ae3949b9b698fc2f9527dff2C.eqId022e530e1dd6453ab54467745e9df0a8D.eqIde80ed1663048435fb4f9c5f762732734
6 . 已知单位向量eqId7fa34c81fe764c5db19edc8249d4ccf5eqId9d9c58594a9b450888a060f3bbe0e37e满足eqId75b4452b6c764885b2573b440158b29c,则eqId7fa34c81fe764c5db19edc8249d4ccf5eqId9d9c58594a9b450888a060f3bbe0e37e夹角的大小为______eqId45d63f02f7bb4f429503caa36987631d______.
7 . 已知平面向量eqIdf087b35a5011425daaafbf14a5e61064eqId06aca259a7e64f0a8c5208d1bdf5c83d的夹角为eqId6c9518e43fd5459798a30cfc10026e3c,且满足eqIdca80d6a361634607b3da78347406a441eqIde7ae764a7c64416e863d54c86260ffd8eqId289370f2e9904fdc87c63bb7eee2f7ee,则eqIdf3b7bb90a3df489aac8f9a3f4a09ae77(   )
A.eqId232536b8bbed4f619f81f098fe3ebb9cB.eqIdfcc58431683b452ca65d1d9977a280bdC.eqId49b7b111d23b44a9990c2312dc3b7ed9D.eqIde4d58f42bad9461b93d451da718fc6f4
8 . 已知平面向量eqIda5521484b4af4d739fb5629298742716eqId694c3d314ebf4b359ba136c17fd6e72f之间的夹角为eqId236bfe74f1024849b3818a5cd741f299eqIda8477722ee4448a5a07652c64aef5657eqId3af417cf70e24e91b6f460e8d82c9013,则eqIdc449a52d7f2e4cc5999a152ad2c64fb1eqIdc3e43ad432ee486c83dbbafc442eabbf之间夹角的大小为(   )
A.eqId9e7f9209cee04cdb9a06395310730b31B.eqIdd3e88ecbd2db456396e01302a43b93d9C.eqId236bfe74f1024849b3818a5cd741f299D.eqId022e530e1dd6453ab54467745e9df0a8
9 . 已知eqId1e62e3ac9406439f803ca28a6690b611eqId4aaa058a4d3247c0aeb7f6a02fc031ddeqIdbf6af9988df44660a479713eec9ba9da.
(1)求向量eqId3d906e5d3e694363af29a999ce4871a6eqIdb8affe1d7571428283ab57a95ed2a84a的夹角;
(2)求eqIdee724d46c16b4828b53b0d5ce5695673.
10 . 已知向量eqId8a71c2d57b0b44ffa0fe22194702d21eeqIdd0c2c24992c44454b9b3908fceb3ce30,则eqIdbf80e33f8af0497793eeb1eb2a0e416eeqId26d0383ebc3f44c2984e80b88390a5f5的夹角为(   )
A.eqId9e7f9209cee04cdb9a06395310730b31B.eqId236bfe74f1024849b3818a5cd741f299C.eqId022e530e1dd6453ab54467745e9df0a8D.eqIda21b55ef906e44cfb9b58adef59456de
3道题,平均难度一般 清空试题 进入组卷中心
收起