名校
解题方法
1 . 已知向量
,
满足
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df8996d500c3385a20a45d3ce469cc5.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076a5954a138c685a5b2f3ec8205988a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8804854a67b627a139a507ff8294427f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df8996d500c3385a20a45d3ce469cc5.png)
您最近一年使用:0次
名校
解题方法
2 . 若
均为单位向量,下列结论中正确的是_______ (填写你认为所有正确结论的序号)
(1)若
且
,且
,则
的取值范围为
;
(2)若
且
,且
,则
的取值范围为
;
(3)若
且
对任意实数
恒成立,则
的最小值为
;
(4)若
且
对任意实数
恒成立,则
的最小值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc1f1ef9ad32eef62aefa4c3fc3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae19a80b97d4dfd1be47844c02980d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3797ac9ea94855ed77cb9be5b4671874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8d6f122739bfe3e5182375b585870a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c73388e5a836011f59e523130b0784.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc1f1ef9ad32eef62aefa4c3fc3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae19a80b97d4dfd1be47844c02980d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29119d4f3ee3426a24700ff7b4ba3e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8d6f122739bfe3e5182375b585870a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93188fdb80dbd006ff8e940f048896a7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960fffaf9d3cee05667705c83419380e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8891c4e0d2d98d3070164b4a48f5d692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c279eca88d292dd0573b49efae2e07f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960fffaf9d3cee05667705c83419380e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8891c4e0d2d98d3070164b4a48f5d692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2aafdbb391ae0050cef40c8d590cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
您最近一年使用:0次
名校
解题方法
3 . 已知单位向量
的夹角为
,且
(其中
).当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7c3a0c7f4fe03ee97392a736276e27.png)
__________ ;当
时,
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8df6d6a87e4c3f2ecf22dd0679ad756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24efa543736b9064b2abe9d35a46308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7c3a0c7f4fe03ee97392a736276e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1d41f07709a8fc518fd07d0743d881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c97c7d26c3d2ba960cb4308b5fc6d3.png)
您最近一年使用:0次
名校
解题方法
4 . 已知平面向量
与
的夹角为
,若
恒成立,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14dbc242644d37708634ada0942b1463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b1f460f99efaf485ca6378ad726e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-05-21更新
|
283次组卷
|
2卷引用:重庆市朝阳中学2023-2024学年高一下学期期中考试数学试题
23-24高一下·全国·期中
解题方法
5 . 设
,
,
,且
,
,
,则向量
的模为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d466e43b2688db586337a430690e7c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea232dab65fe1923a65165af2b71be7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcad49be70d78e1e475d77c9d64d617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf508c8d34aab12dae46e1d05fcd7f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab4641129acd11b089f2c42e52e9e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d066dbb65fab9a947b167173a788b5cd.png)
您最近一年使用:0次
名校
解题方法
6 . 设
、
均为单位向量,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8a4d21c520f5a154f71b40f8e7ee05.png)
__________ .
![](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/29dfc5e603aa452dd200ba943c3707f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8a4d21c520f5a154f71b40f8e7ee05.png)
您最近一年使用:0次
名校
解题方法
7 . 已知
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c6a6f526a6cb850b1cf657ff9e1b50.png)
__________ ;若点
都在圆
上,且
,则
与
夹角的余弦值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889a28b98689ba5c381735a826dee58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c6a6f526a6cb850b1cf657ff9e1b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868ed4efd034574c4c57c52e35898171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d815d9e87892a3ad677f4dc6423ff0d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
您最近一年使用:0次
解题方法
8 . 已知向量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bf77c7d1d6c962297fe7d7622ac2f8.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98886fb284445a99f86685f128f7f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fd756ebb1dd56415de2adbf33c0be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bf77c7d1d6c962297fe7d7622ac2f8.png)
您最近一年使用:0次
名校
9 . 平面向量
与
的夹角为
,
,
,则
等于________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67d605099f257500cd90294797f8df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0212ab68627919b1d22ac348a3e849.png)
您最近一年使用:0次
名校
解题方法
10 . 平面向量
满足
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3377fb1bb8113a9cd8056b85f82012fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2a0779bcb051aefa05b6feeb770609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
您最近一年使用:0次