解题方法
1 . 在
中,有如下四个命题,其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
B.![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
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解题方法
2 . 在
中,设
,那么动点
的轨迹必通过
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d21771089e6535eb670d137c523a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.垂心 | B.内心 | C.重心 | D.外心 |
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3 . 下列说法正确的是( )
A.在四边形![]() ![]() ![]() |
B.若![]() ![]() |
C.已知O为![]() ![]() ![]() |
D.已知![]() ![]() ![]() ![]() ![]() |
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4 . 已知
,
,
与
的夹角为
.
(1)求
;
(2)求
与
夹角的余弦值;
(3)若
,
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b113dc271cf51b3018bd1de14edf73ad.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/d9cbb1eec186a57915e5aced5edce78c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea7e9c354c3e704c6f8ed02de9c2dda.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f0484158c0bb8ef08faf224bba82e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83c5803cc8c05849028a57c4bd4ee72.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f219540d81398b43c1336a8504e857a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5480b4d197235d88c618c52cb8cd01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8440725e1df5ca0990b572dd84127914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72850427e83ff19a24305783e080b280.png)
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2024-06-17更新
|
591次组卷
|
3卷引用:黑龙江省佳木斯市第一中学2023-2024学年高一下学期5月期中考试数学试题
黑龙江省佳木斯市第一中学2023-2024学年高一下学期5月期中考试数学试题(已下线)【高一模块二】类型1 以平面向量为背景的解答题(A卷基础卷)福建省部分优质高中2023-2024学年高一下学期第二次阶段性检测数学试题
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5 . 在
中,
为
的中点,
为边
上的中点,
交
于
,设
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc03a3ba496faee748a8d63e5d4fa92.png)
,
表示
;
(2)若
,
,
,求
的余弦值
(3)若
在
上,且
,设
,
,
,若
,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc03a3ba496faee748a8d63e5d4fa92.png)
![](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/9cd5844deaa2a8cdda9477bcbf76c459.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede13546f2d31024998fd9a81b6004eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0f8a493ac2b5d05c09e47ed4169629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99db7cd00a7debcdd17f4716ba9cd77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72689e44ff4e828835ee13ea82320fc6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5e19562bf0b7f47fa50b428d4c9f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede13546f2d31024998fd9a81b6004eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0f8a493ac2b5d05c09e47ed4169629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5685770f82fd0a654c6098caa53e6949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5610dc0acc42d3c5e5c60847842f7254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc53d9b451ff0fac9e1eb843eadfe33.png)
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解题方法
6 . 如图,这个优美图形由一个正方形和以各边为直径的四个半圆组成,若正方形
的边长为4,点
在四段圆弧上运动,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83b9f01e806bf74042ba41b26423022.png)
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2024-06-15更新
|
444次组卷
|
4卷引用:黑龙江省哈尔滨市第九中学校2023-2024学年高一下学期6月月考数学试题
黑龙江省哈尔滨市第九中学校2023-2024学年高一下学期6月月考数学试题上海市上海师范大学附属中学2023-2024学年高一下学期期中考试数学试题(已下线)考题猜想03 平面向量-期末考点大串讲(沪教版2020必修二)(已下线)专题2 以平面向量数量积为背景的最值与范围问题【讲】(高一期末压轴专项)
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解题方法
7 . 已知
内角
的对边分别为
,动点
位于线段
上,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b91cb33557d2ecbfee98c91e04fa9f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787dfab61ed9830b531da365e592bbd.png)
A.0 | B.![]() | C.![]() | D.![]() |
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8 . 如图,正方形ABCD的边长为1,P,Q分别为边BC,CD上的点,且
;
的大小;
(2)求
面积的最小值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3e40a98f31996bc2ebae1cacdf3ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7023ec0f513c7d0ef86859a5ede54.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
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解题方法
9 . 在
中,已知
,
是
的外心,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd989ddfbed4a6aa18ea57734522153.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b2115f97b7956e4a69ff4958ac1ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8954ac84d5a64358d2876a62f2a439b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd989ddfbed4a6aa18ea57734522153.png)
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10 . 对于非零向量
,定义变换
,得到一个新的向量,则关于该变换,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860fc1db2edc066188f8d24e35dbf205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4925f6a0b059d46dae8c8796098fa2dd.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.存在![]() ![]() |
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