名校
1 . 在平行四边形
中,
.
与
交于点
,求
的值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df564ee0db41b0fed5ef3a55ca6afca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec23e95587315d0e7d21a4794007045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9869a996cf7a683bc596a4286c8dc4da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6b86735572c3e9cee5e60e749b3bb3.png)
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2024-05-08更新
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4卷引用:辽宁省本溪市县级重点高中协作体2023-2024学年高一下学期期中考试数学试卷
辽宁省本溪市县级重点高中协作体2023-2024学年高一下学期期中考试数学试卷河南省驻马店市新蔡县第一高级中学2023-2024学年高一下学期5月月考数学试题(已下线)专题03 向量的数量积-期末考点大串讲(人教B版2019必修第三册)湖北省黄冈市浠水县第一中学2023-2024学年高一下学期期末质量检测数学试题
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解题方法
2 . 帕波斯在其著作《数学汇编》中,提到了蜂巢,称蜜蜂将它们的蜂巢结构设计为相同并且拼接在一起的正六棱柱结构.已知蜂巢结构的平面图形如图所示,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6eab0544c9fad5acde25bec349fb02.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024·全国·模拟预测
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解题方法
3 . 如图,在边长为3的正三角形
中,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1a106e4f1a3d3f9efddb4dc4c63664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dc0daae0f88dcfa261863136031055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bda041270e4fa25f1f6c090bbfb5456.png)
A.![]() | B.3 | C.![]() | D.2 |
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2024-05-06更新
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4卷引用:四川省南充市西充中学校2023-2024学年高一下学期5月月考数学试题
四川省南充市西充中学校2023-2024学年高一下学期5月月考数学试题江苏省扬州市新华中学2023-2024学年高一下学期5月月考数学试题(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)(已下线)2024年普通高等学校招生全国统一考试数学文科押题卷(四)
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解题方法
4 . 在
中,
,
,
的平分线交
于点
.若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806d90355769e53ce347d24bf764506d.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5407daad0b0a876e5d9d5f5191642fad.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806d90355769e53ce347d24bf764506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8704be017325107e21d541e816690b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5407daad0b0a876e5d9d5f5191642fad.png)
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解题方法
5 . 已知向量
,
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bd1a105b5b339da0200ff7f0be767b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b8583acf0b89997429dbbaa837c3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52380d7e39e132e38d401d3981dc091f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03481e6a73207be03fdbc1f8e9965b37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d700e4e9f5077f02841f737b22fcd623.png)
A.![]() | B.24 | C.![]() | D.12 |
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6 . 在如图所示的扇形
中,扇形的半径为
,点
在弧
上移动,
.
,求
的值;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2d668f4d87309801205b404c8e39a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450743dbe1916012643039cd87a72263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4769a63fe1389cde0c3bb17007e5e949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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解题方法
7 . 已知向量
.
(1)求
的坐标与
;
(2)求向量
与
的夹角的余弦值;
(3)若
与
夹角为钝角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec2951d88e9d8a7160ea8f3854208e3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97b606445f8561e66ae725bc72def10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c2a83fad3941e98cdf0bed4f64ee4b.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac99a273b6920085438b66ce74b31ef.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a87c03982d3af82c243fe0cca504f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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8 . 在正六边形
中,若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045b334f141ddea7cf84d792e275f092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab3295ac6abf98addda6b3ee9207a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75698b8b4207e4439b179a89789246fc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
9 . 已知向量
,
,
,且向量
与
共线.
(1)求
与
夹角的余弦值;
(2)若
,求t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f4dcf415977dea53f52a85b6b82136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991a4493cfd34d25c6ffbadc12c27978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5d89404bf276405ee32b403418042f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20f69af6870bada879cddd7f6794d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f5cb84750e467daf59bbeebd0738d2.png)
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10 . 已知向量
,
,
(1)若
,求实数
的值;
(2)若
,求向量
与
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9083888b0d8a168a46a983575dba2820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b21e6df500c68ff7a9ae440511b9fb4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568277c7a425c0ee42f15c8f08fd08a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9747e75a539f594ae8bbd854e6a43089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
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2024-05-04更新
|
495次组卷
|
3卷引用: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)
(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)四川外语学院重庆市第二外国语学校2023-2024学年高一下学期期中考试数学试题湖北省襄阳市第五中学2023-2024学年高一下学期5月月考数学试题