解题方法
1 . 已知向量
.
(1)求
;
(2)设
的夹角为
,求
的值;
(3)若向量
与
互相垂直,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b19e7da9eb79541fd321f0f9f26150.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd764def6a96d1f2abd3b89580c5352.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(3)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d5d06c8ba359e2f95bd6abbeb9d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff01c3e3b53271c5d16ad4e02a930ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 在平面直角坐标系中,已知向量
,
,
,且
,
为非零向量.
(1)若B是AD的中点,求
的坐标;
(2)若
,
,求四边形ABCD的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5721e3048f5dd39a47ac97f34d480a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9514e92be1a118d4e82c310ace83864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133255c5143629726bed53e6c32ee526.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
(1)若B是AD的中点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32458db21db3e131308b31f48353fbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc9448c4e9a71c0ec8a1de4904b7bd7.png)
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解题方法
3 . 已知O为坐标原点,对于函数
,称向量
为函数
的相伴特征向量,同时称函数
为向量
的相伴函数.
(1)记向量
的相伴函数为
,若
且
,求
的值;
(2)设
(
),试求函数
的相伴特征向量
,并求出与
方向相反的单位向量﹔
(3)已知
,
,
,为函数
(
)的相伴特征向量,
,请问在
的图象上是否存在一点P,使得
?若存在,求出点P的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66655b7a6825b124ce596197bf2aa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(1)记向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffe91c3b3290e5eb048b0028b0a5686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9bf0adbe45ec2819dbe8cf4ec99008f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d3fa686db08faac289451eb2d93e764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8c56d09485b718a85ed23f637e2d77.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78284751d9f5f0e45cdfdb608b049ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c21dde2ad1e31c337bfb78c810ccb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aab5da44c04986fec56fe0429e7bd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8995dd0d46aa3505185b312b37d2654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde2057eeaf26f3e9dd1748e1e4adc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d0f698f257914921dae5b31f9051e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661249bf6499017f9e5e03db3fcd93d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b929fe0f9c13dd6dfabca91a1a4aaa.png)
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名校
解题方法
4 . 已知向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d372bd3b63f4f8107096b93076d3e35c.png)
(1)若
,求实数
的值;
(2)若
与
的夹角是钝角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ea38b9055f23e9945c358c6fbe9958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d372bd3b63f4f8107096b93076d3e35c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a7dc25e72e9a746d313cc496e3de57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](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/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
7日内更新
|
326次组卷
|
2卷引用:吉林省长春外国语学校2023-2024学年高一下学期5月期中考试数学试题
5 . 已知向量
,
.
(1)若
的夹角为锐角,求实数
的取值范围;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4165b30eeea4d7b76a90d9989b11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e07e1c40bc6572fa9b0cc70da8a1b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6976a27fed93809d8428fbab345f9414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e8681ea75c4398864e1ded99e1ec48.png)
您最近一年使用:0次
7日内更新
|
241次组卷
|
2卷引用:安徽省蚌埠市皖北私立联考2023-2024学年高一下学期5月月考数学试题
名校
6 . 已知平面向量
,
,
,且
,
.
(1)求
和
;
(2)若
,
,求向量
和向量
的夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27acda0d95efa6fb5ca9a57759e1702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bdb1cdb08ed2ed7e70b5246f45d0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e509349f83a9fb9340d4de7e90cd5c35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03481e6a73207be03fdbc1f8e9965b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a36228810d0c2f6c6e53584c1ac176b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98cfc96a17c0ed837bd8bfabdda5217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd89e2066303543b96c0ee4b5d64d35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37564ec4e9e92485f1769e8ffaac31d.png)
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7 . 已知
,
.
(1)若
‖
,求实数
的值;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5540e20f112735e9338908eecc6d0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83cdccee6faf1ac1aeefc1458de21e5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c8faaa7880ff1ac2120f52b1e8247c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b44b01f5f353de0dab9eabea24f281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a205cf2c81aa27463113cc77dbaa89ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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8 . 已知
分别为
三个内角
的对边,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
______ ;若
,
,
,
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f2599ca8b6b683e57a82699c8b1ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99eb4f079ec739c81a07d11a0939834b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12dcfb8f3fc0ac45d50782c3f248672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2187ee1ea3b7e47a6283314322e5decf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6c03c053e0d74a04dd5142f0c37fc6.png)
您最近一年使用:0次
9 . 软木锅垫的正、反面可加置印刷公司logo、图片、产品、广告、联系方式等,表面较强的摩擦力既可以防止玻璃、瓷杯滑落,又可保护桌面不被烫坏.如图②,这是一个边长为20厘米的正六边形的软木锅垫
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
A.向量![]() ![]() ![]() |
B.![]() |
C.![]() |
D.点![]() ![]() ![]() |
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2024-06-17更新
|
212次组卷
|
2卷引用:山东省济宁市兖州区2023-2024学年高一下学期期中质量检测数学试题
解题方法
10 . 如图,在矩形
中,
与
的交点为
为边
上任意一点(包含端点),则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7e71123e4b7ec563f7c8367384d9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95229f26c09fe84f1f7928c85b37b286.png)
A.2 | B.4 | C.10 | D.12 |
您最近一年使用:0次