名校
解题方法
1 . 已知向量
,
,则
在
上的投影向量的模为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f726edf8cca26e1011faa7101c506e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19baae22bd07eed23e25db63ad8d29a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.1 | C.0 | D.![]() |
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2024-06-10更新
|
1242次组卷
|
2卷引用:浙江省杭州市西湖高级中学2024届高三下学期数学模拟预测数学试题
2 . 已知向量
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb3b981996d4a8dac628be3f3134071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4399b289ba6ff9981feed3e835532f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
3 . 已知向量
在
的投影向量为
,且
,则
( )
![](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/cb3a1463f8cc761d756d7965db4ad62e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0979ead3a09ede4835e7fe77c87850f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-08更新
|
493次组卷
|
4卷引用:浙江省钱塘联盟2023-2024学年高一下学期4月期中联考数学试题
浙江省钱塘联盟2023-2024学年高一下学期4月期中联考数学试题福建省莆田第四中学2023-2024学年高一下学期期中考试数学试题(已下线)高一下学期期末考试03(范围:必修第一、二册)-重难点突破及混淆易错规避(人教A版2019必修第二册)陕西省西安市高新第一中学2023-2024学年高一下学期第二次月考数学试题
名校
解题方法
4 . 已知
,
,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcb68ca114179c1d73e6d690e64c801.png)
(1)求实数
的值;
(2)设
,求非零向量
与
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2807ecc81d36bee4048fa4d570895d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6761671da84d62ef7257cd5461dc3ae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcb68ca114179c1d73e6d690e64c801.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b4c8fee6a09eeb6b595dab15b38d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
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解题方法
5 . 如图,设
,当
时,定义平面坐标系
为
的斜坐标系.在
的斜坐标系中,任意一点
的斜坐标这样定义:设
,
是分别与
轴,
轴正方向相同的单位向量,若
,则记
.下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5854a3135bfc783f0a51ef40d09c51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad4c21d0009cf8265361890308e056e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5253a9a71037d60059b60237824193b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4224bf1cbcd51f4cbdce93d981d65c5a.png)
A.设![]() ![]() ![]() ![]() |
B.设![]() ![]() ![]() ![]() |
C.设![]() ![]() |
D.设![]() ![]() ![]() ![]() ![]() ![]() |
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名校
解题方法
6 . 平面向量
中,已知
,
,且
,则
与
的夹角为______ ,向量
的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cb17403fe59a0e1a93df381aed40cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf342e77c56e55a35bb1151bc215a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b621e2b0c9fd99d4fd90fc2e5b03cf.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/c94075193c11fe43f2396cff5a485054.png)
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名校
解题方法
7 . 已知向量
,则与
夹角相同的单位向量为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe4fb36db5bbcf44c2ec792c4a933ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de92206d9c5afc2056f16086346a877e.png)
您最近一年使用:0次
8 . 已知向量
,
满足
,
,
,则
在
上的投影向量的坐标为( )
![](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/9a1fbde1de351bce74ea7736f16340a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a064389533e4b2d37d787e93701bbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d499e1b8a12684c500b92fe0de45ecb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-03更新
|
150次组卷
|
2卷引用:浙江省北斗联盟2023-2024学年高一下学期4月期中联考数学试题
名校
9 . 已知平面向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064e862604b5eb032f6093efd5489d2f.png)
(1)若
与
垂直,求k;
(2)若向量
,若
与
共线,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c5293dfdbd72411423003ec100c910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064e862604b5eb032f6093efd5489d2f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bf3adde4919d270d70bc551b2c1ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437dc907211c5934f938d869f6b19e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e57abd90f4bb8e35fb7bdd38dad672a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ad9c8cff8265db44e1fcd86b4dc8e0.png)
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2024-04-22更新
|
708次组卷
|
2卷引用:浙江省台金七校联盟2023-2024学年高一下学期4月期中联考数学试题
名校
解题方法
10 . 已知
和
是夹角为
的两个单位向量,且
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7b546b578eb12c05dac348041d962b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637b95cf8df330e4323cf0dbb68c8c58.png)
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