1 . 折扇又名“纸扇”,是一种用竹木或象牙做扇骨,韧纸或者绫绢做扇面的能折叠的扇子,折扇的扇面自古以来就是文人墨客喜爱的诗画载体.图2中扇形
是图1中扇面的平面图,其中
.如图3,某书画家计划在该扇形内取一个矩形
进行绘画或书写以抒情达意,设点
为弧
的中点,扇形半径为1,
,记矩形
的面积为关于
的函数
.
的解析式,并指出当
为多大时,
最大;
(2)令
,若
在区间
上有两个零点,求实数
的取值范围;
(3)若
为扇形
中
上的一个动点,且
,其中
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52bdd7b8a0dcc06988320f476956f8f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4920b6731fc1580a46dad9ca40609d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37dd0802f896556180545ae356e90c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa72c594ebe33496fa7b9edf1db5c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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2 . 已知向量
.
(1)求
的坐标与
;
(2)求向量
与
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f51c4d21414bec029a3c75a160f56a6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf686a7c5e97a93e80130fc04b70305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5382bd3fda4371289ce6800f71f9565.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69552ea735e33d4af543f1c8b43db1f.png)
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解题方法
3 . 如图,在正方形ABCD中,点E是AB的中点,点F,G分别是AD,BC的二等分点.
(2)已知对任意平面向量
,把
绕其起点沿逆时针旋转
角得到向量
,叫做把点N绕点M沿逆时针方向旋转
角得到点P.已知正方形ABCD中,
,点
,把点B绕点A沿顺时针方向旋转
后得到点P,求点P的坐标.
(2)已知对任意平面向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5507678a16df4180ef2cd011047083a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a014dff8997c661055229de29c61cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e287cdafccfdf029423546309679f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131ebfee8d3fd5d0c4d3b20012e232f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3dd032b16a9730fb66544ff4fd3a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
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名校
4 . 对任意两个非零向量
,
,定义:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2880d03a4fe19b30857292e07a7bb29d.png)
(1)若向量
,
,求
的值;
(2)若单位向量
,
满足
,求向量
与
的夹角的余弦值;
(3)若非零向量
,
满足
,向量
与
的夹角是锐角,且
是整数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2880d03a4fe19b30857292e07a7bb29d.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dba6c7eb6216014862640716991326a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22249dd883332a917ec68eaf7dd5ea23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2eb893d1367e26f4388ae4280f78630.png)
(2)若单位向量
![](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/dcb0319e46d3d669c9439537e600c461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca35e52b8430246a1cf96e9e617cce.png)
(3)若非零向量
![](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/aaaa5755983415a0dd11a44c4f426efa.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/189301a0467dfa2daf6b5806d15bfa22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dd1004f81418675f8cfac07219d59c.png)
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昨日更新
|
615次组卷
|
6卷引用:重庆市璧山来凤中学等九校联考2023-2024学年高一下学期5月月考数学试题
重庆市璧山来凤中学等九校联考2023-2024学年高一下学期5月月考数学试题吉林省部分名校2023-2024学年高一下学期联合考试数学试题(已下线)【高一模块三】类型1 新定义新情境类型专练(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)山东省泰安市新泰市第一中学老校区(新泰中学)2023-2024学年高一下学期第二次月考数学试题(已下线)第2套 全真模拟卷 (中等)【高一期末复习全真模拟】
23-24高一下·贵州贵阳·期末
5 . 已知向量
,
.
(1)若
,且
,求向量
在向量
上的投影向量的坐标;
(2)若向量
,且
,求向量
,
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1462c1fed1d82541fe6e8cfeab430e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d49a216512c1d79f21f3e7d4243894a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51ee815e7260e25b5709b85ea895748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcad563f5a6828760ffb8f3aedfd318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdc1bf6047bdfa7aea068dd842db407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
您最近一年使用:0次
名校
解题方法
6 . 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)
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昨日更新
|
281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
解题方法
7 . (1)已知P是直线
上一点,
(
为实数,且
),点
的坐标分别为
,求点P的坐标
.
(2)已知平面上三点A、B、C的坐标分别是
,小明在点B处休憩,有只机器狗沿着
所在直线来回跑动.当机器狗在什么位置时,离小明最近?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b5bb87687b19fbc48be9068db60da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c87f4c40e50504adaface510404dbfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594fa9a4bce1ed5fd27e4cb55d63cf0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8be368791da55817b64a14a89fcf24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
(2)已知平面上三点A、B、C的坐标分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9c2a68bb128cdd92cdd103b0fedc03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解题方法
8 . 已知向量
反向,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee608d639b3bc3ea3aef334e9459c6b.png)
(1)求向量
的坐标.
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee608d639b3bc3ea3aef334e9459c6b.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c155ddacf0331e9e57c24c7cc1fc3e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c5f3d88dc54b71494605f41bf19382.png)
您最近一年使用:0次
解题方法
9 . 已知向量
.
(1)若
,且
,求向量
的坐标;
(2)若
,且
三点共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd563b0fa52b0581f1327ee012c854b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547485e91d0fef83e879f6306c3decb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3765851ae15bd5568ec4462c3f9aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc10093092181ecdbb834fdeeffbf72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
10 . 已知
,且
,
(1)求实数
的值.
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae8e588364f28e37a013c9943231b3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f804528bc4c32cd8dd33668376f3b1e.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986d1f7eb4776389f1bac84b40e60616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次