名校
1 . 已知
是三个非零向量,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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3卷引用:江西省多校联考2023-2024学年高一下学期5月教学质量检测数学试卷
江西省多校联考2023-2024学年高一下学期5月教学质量检测数学试卷吉林省长春市十一高中2023-2024学年高一下学期第二学程考试数学试题(已下线)专题03 平面向量的数量积常考题型归类-期末考点大串讲(人教B版2019必修第三册)
名校
解题方法
2 . 已知平面向量
其中
.
(1)若
,且
,求向量
的坐标;
(2)若向量
,若
与
垂直,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba55056a7121491bca24e0c6cc5c4d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8bc5db3d1568ef8ca089cf31e239bd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889b5481a226911819ede874f39279c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031bbd3b34b1c4e47f428e3f9b3787bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4a22e6bf596853ef3132a6dc37731f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83c5803cc8c05849028a57c4bd4ee72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d5fa4100a6b6e8e2c3605c97e6ee78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c437edd4d400b1fc590f01652621273d.png)
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名校
解题方法
3 . 已知向量
,
,
满足
,
,
,则下列说法正确的是( )
![](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/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e3441f978b63b518eda0b14bcbd719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049724eb5ebb695bc72918b71ab82135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd2a3800b117059ea6133e3a4039145.png)
A.![]() | B.![]() |
C.![]() | D.向量![]() ![]() ![]() |
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2卷引用:山西省临汾市名校联考2023-2024学年高一下学期5月质量检测数学试题
真题
解题方法
4 . 设向量
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de90ebc599dee1d3dec0733f0ddf83bc.png)
A.“![]() ![]() | B.“![]() ![]() |
C.“![]() ![]() | D.“![]() ![]() |
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名校
解题方法
5 . 已知向量
.
(1)若
,求
的值;
(2)若
.
①求
与
的夹角
的余弦值;
②求
在
的投影向量
③求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376bf07c9fa02712d8661de95b59b44a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60e2180220297601db28850e5122807.png)
①求
![](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/c24095e409b025db711f14be783a406c.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
③求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00212b47f47f073833c3001b3463ac7.png)
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6 . 如图,
,
,线段
,
相交于点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18bf5477ab809cf5b133a045b0ea8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79b194152945f719c21bbe5d525338d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
名校
7 . 已知向量
,
.
(1)若
,求
;
(2)若
,
①求
;
②已知
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a67711170219688d03144200ae396e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5de571daa349850dbc7fc98b7b990a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44726b1d833cfef78c52b027817a69ce.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032f8f657f9163ebc64db95d214f4091.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
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名校
解题方法
8 . 已知向量
.
(1)若
,求实数
的值;
(2)若
,求向量
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfc375d4e3d3f2ef78d391562750e52.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e82afff2681ed19ac5cfd9fb71172ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a335557063547a962ba3d72a1e99361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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名校
解题方法
9 . 已知向量
,
,且
与
的夹角为
.
(1)求
;
(2)若
与
的夹角为钝角,求实数
取值的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6058a2d06b42c223208e37b901b7ff9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e82e6a84171c2fd73f7c0dd184b0294.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/15615de1a6df206dbd081251f676578e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c75a15198f2465863fd46e0794d0bf2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a85661e8639ccd3d0c70ca431c8e73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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526次组卷
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2卷引用:山东省济宁市泗水县2023-2024学年高一下学期期中考试数学试题
名校
解题方法
10 . 已知
,
,若
,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c7155cb338decc45636b14be741e1a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9e9fa37638ba13e61052c80e2ebac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afa49dbaa99a0d7a7a6d18b3fe42091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.1 | C.3或![]() | D.1或![]() |
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