组卷网>知识点选题>平面向量的概念及线性运算、平面向量的基本定理
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1 . 在eqId64b9b599fdb6481e9f8d9a94c102300b中,eqIdf5614acf63754e8a927e0bd2ba947737eqId46af16b0b98e4752aaafd30c6e00f11a,则eqId4f0de3619ed04bf0a87dc349a0cf2e72(   )
说明: figure
A.eqIdbef81c21fd4e470eabbb162529bee989B.eqIdec4b10d28014438bb511e1b90286dddb
C.eqIdf761eacb388b44e78fee26f417511044D.eqId8c622e0c0b014406a4bf29a4b4beee84
2 . 已知向量eqIdb95d440f4558489b97537cbf9386d253eqIdf69df5caff1f46ce90f3b256e4aac6ab,且eqId978e59a9f8504a15b54b6796f3a932bd,则m的值为(   )
A.eqId8e3ab4836a874ab593bb67a2bce00575B.eqId5f51ce9cc7fe4412baeb871cceb26665C.eqIdca7f979b4aed44608faf40debecd18b1D.eqId4c0fea3781d84454a9f933aab6fe70bc
3 . 已知向量eqIdab4490ec6b7e4731baafa4768bafa2adeqId11679df77fc84f1e90df040aafad7982
(1)若eqId0190ccabb04442199a0237efc0ffb79aeqIdb29feab91d7f423595c4d930c3ba584c平行,求实数eqId4d2187284c5d4de29906363f7d21f60f的值;
(2)若eqId14cb2b2822de4f42abd8745987799247eqId23ea9309b0174ad7bcbda4cc87de16e0垂直,求实数eqId5f420ef2d0b94c4b8a5d8e20a5d1ce2c的值.
4 . 已知四边形ABCD满足eqId61d7cde3ca904399b4b0ed99c47521c6,点M满足eqId8b47bac040424b91bb7d863cc6db6090,若eqIdd23594f5d1194d7ba32e8de94f34a440,则x+y= (   )
A.3B.eqId52ef9cda12e5410dafc3bfcf1840555bC.2D.eqIdfcc58431683b452ca65d1d9977a280bd
5 . 在平行四边形eqId5ce7a06ae7a34393b92b5277978ac014中,eqId93cbffaa5ae045d6ac45d1e979991c3aeqId63db14a5b4334f3ea583c8fb12b0d175eqId92869ac114124367b45f631d030ed6bd分别为边eqId0627be51821d4be7b3e024a354815d64eqId34c6b6e427744abfb88dc90b8c7c2111eqId890174c35d994035b942963f9fddd43b的中点,eqId8754ce8cf7f34f04abb9a0c041f57f5ceqId2381423d4cd146cab95f55527681a766eqId92869ac114124367b45f631d030ed6bd三点共线.若eqId7b926a6d15954dac8696d19d1f589e5e,则实数eqId70a27b6ddf6b478285353abb3b1f3741的值为______.
6 . 已知向量eqIdf087b35a5011425daaafbf14a5e61064eqId5f16eb46594d47b58ffc973b5cc2dd0d不共线,且向量eqId3b739bb788a64178bdb43f88d3de400eeqId6323cd1e047c4748aa2353125093674f共线,则实数eqId5f420ef2d0b94c4b8a5d8e20a5d1ce2c的值为(   )
A.-2或-1B.-2或1C.-1或2D.1或2
7 . 已知eqId64b9b599fdb6481e9f8d9a94c102300b外接圆的圆心为O,半径为1.设点O到边eqId0627be51821d4be7b3e024a354815d64eqId1eb64606273a4d63bfa90e56f9a3f5c2eqId99a3187c2b8f4bcc9703c74c3b72f1f3的距离分别为eqIdcb9b2b8bd99c447bbccaaa8a411aa71beqIdef8988307d4c45ce94db1755a94bb661eqId8f19c84fd7204c62a9cc886c9413e214.若eqId3838902fa64d4155a0efa77f8df04bae,则eqIdd43cca36ae9445398483e0c61e8ec4b9(   )
A.eqId44aff622a095465082b61837e24439e7B.1C.eqId6b2724baa0064c51b2ba39f5b281a1ebD.3
8 . 如图,在eqId64b9b599fdb6481e9f8d9a94c102300b中,eqId0cd8063abf2b458f80091bc51b75a904eqId93cbffaa5ae045d6ac45d1e979991c3aeqId63db14a5b4334f3ea583c8fb12b0d175分别是eqId99a3187c2b8f4bcc9703c74c3b72f1f3eqIdcf2da96900c948a1b3ce7cbfd420c080eqId0627be51821d4be7b3e024a354815d64的中点,则(   )
说明: figure
A.eqIdba6b8e079bb64688b98d588211489813B.eqIdb19e9260fd834d9d8ef23871ec85c891
C.eqId98a03a39376e4b8387eeb611ce5374f1D.eqIdabed856aef19464ba9d48cc12e733d8a
9 . 在eqId64b9b599fdb6481e9f8d9a94c102300b中,eqId0cd8063abf2b458f80091bc51b75a904eqId99a3187c2b8f4bcc9703c74c3b72f1f3的中点,则eqId9a089ad8d4e84dfbaa12c5ff49e11654(   )
A.eqIda5b6cdb6dafb419794535dde725322fcB.eqId73052d84d64343e5befd0a0190de502d
C.eqIdfc4791c80ec2483b8628243e5495590dD.eqIddbfaf46290ae4f509f5ca435c11adb4d
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