1 . 如图,设
是平面内相交成
的两条射线,
分别为
同向的单位向量,定义平面坐标系
为
仿射坐标系,在
仿射坐标系中,若
,则记
.
仿射坐标系中
①若
,求
;
②若
,且
与
的夹角为
,求
;
(2)如上图所示,在
仿射坐标系中,B,C分别在
轴,
轴正半轴上,
分别为BD,BC中点,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c092d69df76faf1e2133dc96b466ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a998a7d4d980e848ee050b706480ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad59ee7969f2a082ed53bdf0aaa748ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c092d69df76faf1e2133dc96b466ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4446f654cf8401b640cc79c2b97af5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4446f654cf8401b640cc79c2b97af5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3def4278aef3c2c3aa64386584e5df65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1826aa6f667b181d7aabc06e35365308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4446f654cf8401b640cc79c2b97af5db.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b1fc6efbb1fe3d949bf100925cdf34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5455bdb43226a925e13da2df0f233be6.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5b0bb8bf0236fde97d668f40fd404a.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/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
(2)如上图所示,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479feca6887a5b30b7142c665cc61e9d.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/03da507737fe5b3211dc2953d6c971c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a462f4899d41997a8ce2df63d0056e4d.png)
您最近一年使用:0次
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解题方法
2 . 已知
,
,
,函数
的最小正周期为
.
(1)求函数
的单调递增区间;
(2)在
中,角A,B,C所对的边分别是a,b,c,且满足
,
,
,角A的平分线交BC于D,求AD的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e046aa5a6d13c716f42faa2160204261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c700db6ecf3c05922a0c3b7361a37da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d743c3f9bcdf617ffffcee403c9c81a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b795d97909073899be77916acd1f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21143d45f8a1eec5a18f3b82c78ac217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
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解题方法
3 . 已知向量
.
(1)若
,求
;
(2)若
,求
与
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3111166b71f494fb3ee7f2cea8979555.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0451c2a2e67c66631d1a46d3f7518d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e6f98f23fea7db0f74897928024ca0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da87e3251eebd2bd8039fed1c8f46a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51fc523c510f60ccd88297c170d9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
您最近一年使用:0次
2024-04-16更新
|
914次组卷
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3卷引用:湖北省部分学校2023-2024学年高一下学期4月期中考试数学试题
湖北省部分学校2023-2024学年高一下学期4月期中考试数学试题广东省湛江市第二十一中学2023-2024学年高一下学期期中考试数学试卷(已下线)专题01 第六章 平面向量-期末考点大串讲(人教A版2019必修第二册)
名校
4 . 已知
,
,且
.当
为何值时,
(1)向量
与
互相垂直;
(2)向量
与
平行.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b70bd5a59234a1f011b1afbe8ba7e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407538138dd68ab917925c2063cc98e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1f60649f5513585ee3e03f6446ccb35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48648c39a91b54e88ac2b637ddf98098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b0d6f45010a54e0bfa0b48c90376ebb.png)
(2)向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff01c3e3b53271c5d16ad4e02a930ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2e08d0ffb3a2147fb1ba5145471082.png)
您最近一年使用:0次
2023-08-07更新
|
357次组卷
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2卷引用:湖北省武昌实验中学2023-2024学年高一下学期3月月考数学试卷
名校
5 . 已知在平面直角坐标系中,
为坐标原点,定义非零向量
的“相伴函数”为
,向量
称为函数
的“相伴向量”;记平面内所有向量的“相伴函数”构成的集合为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)已知
,
,若函数
为集合
中的元素,求其“相伴向量”的模的取值范围;
(2)已知点
满足条件:
,
,若向量
的“相伴函数”
在
处取得最大值,当
在区间
变化时,求
的取值范围;
(3)当向量
时,“相伴函数”为
,若
,方程
存在4个不相等的实数根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e9354f8346e9004bd73ae7cbbb6f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9f700581dc164fa3985cec7262e97b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e9354f8346e9004bd73ae7cbbb6f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9f700581dc164fa3985cec7262e97b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9883e09b1ac40ccaebcaec21e2871c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06af1eee80c1971583ca553df77e49a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7d4d2a7191b6c58469a9c2b3856bf85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6799b234237333b0efa331d98f0374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107988d185e050b50ad1ddb8cfa0a887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e0e24323fe73e5d9fc6136219306da.png)
(3)当向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18baf03916261c4fb6d77a3467c42ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63bcbb1401f8326bbe18d365793f3cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c217a8809496dd10e0935734ff2e1643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-07-13更新
|
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4卷引用:湖北省武汉市第十一中学2023-2024学年高一下学期3月月考数学试卷