名校
解题方法
1 . 已知
,
,
,求:
(1)
;
(2)
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190efc599b93baddd642ed5e2fcbcdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594d993556173ded55043c25230776b2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e6f98f23fea7db0f74897928024ca0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
您最近一年使用:0次
2024-05-29更新
|
611次组卷
|
5卷引用:黑龙江省大庆市大庆中学2023-2024学年高一上学期月考数学试题
名校
2 . 已知
,
,
,
,
.
(1)若点D在第一、三象限的角平分线上,求
的值;
(2)若点D为线段BC的一个三等分点,求D的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d31cd03879d5c69ff11d0923f1ee82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7089a4e568ed92b1230af589f4d47be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208d21b0e0763afaa4dbad65adc77de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
(1)若点D在第一、三象限的角平分线上,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若点D为线段BC的一个三等分点,求D的坐标.
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3 . 已知
为坐标原点,
,
,
.
(1)若
三点共线,求实数
的值;
(2)若点
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e84f5c91c910aaafc5e74dbfbdf59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e717fc336c2b9c1617421b5b8a4ae6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c052d7af2f98d95bac8725b608fba0fc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61eb783400ed8be99049a6d89fc21045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8b12e3bed2aff0970b56787253bc90.png)
您最近一年使用:0次
2024-05-08更新
|
234次组卷
|
2卷引用:黑龙江省绥化市绥棱县第一中学2023-2024学年高一下学期4月月考数学试题
名校
4 . 已知函数
的部分图象如图所示.
的解析式;
(2)若
,求函数
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a28e06a36dc91105e73eddf7042db96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2605aa17904cd5b0c5f316a5e1d9f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b172723002461ae60798317e2f10f6c2.png)
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5 . 已知
夹角为
,且
,求:
(1)
;
(2)
;
(3)
与
的夹角
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e906b18a41180399697862e474627b.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b195aa36a3c2753ebf08cb464c52ad1e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0081237674b159a7532c7f178986ce80.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e62efe57c935c50057c90ed8e45d387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8505aaf8a003faa6051bbd1edaa5ee91.png)
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解题方法
6 . 已知
,求
为何值时:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
(2)
与
的夹角为钝角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/487080a5fa501a4c696cca69425f96cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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解题方法
7 . 已知
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065f131d49f2f36219e6001bc5ac2d38.png)
(1)求证:
;
(2)求
的值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f55b8836b41be612a52ca9caf97006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e744af0f65e797a35d976c20f2dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c4e6f9c76fa9a1688d12b3ab5da6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065f131d49f2f36219e6001bc5ac2d38.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ced75b8a61b973f828c24df13ef6e69.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47c3a0b29596d9c03180639aa4add8a.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
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8 . 已知向量
.
(1)若
,求
的值;
(2)若
,求向量
与
夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13656c9a68fbdb1489f0ef373e1060e8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8eafb341060b35ffaf7ec2c1e0f5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cfe95f520c7b454ceabb2ae9af0a87.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799c186733b281397143992e6b33c7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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2024-04-13更新
|
399次组卷
|
2卷引用:黑龙江省齐齐哈尔市第八中学校2023-2024学年高一下学期期中考试数学试卷
名校
9 . 已知向量
的夹角为
.
(1)求
;
(2)若存在实数
,使得
与
的夹角为锐角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bc463bbb149c0eca3dece73123b5d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12dfa2b2e9488107d07fdac71f433774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d108e523626be0b40be9b3543ce12524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-04-13更新
|
697次组卷
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6卷引用:黑龙江省绥化市绥棱县第一中学2023-2024学年高一下学期4月月考数学试题
黑龙江省绥化市绥棱县第一中学2023-2024学年高一下学期4月月考数学试题黑龙江省绥化市第二中学2023-2024学年高一下学期期中考试数学试卷黑龙江省九校联盟(齐齐哈尔五校+黑河四校 )2023-2024学年高一下学期4月期中联合考试数学试题(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)(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)河南省周口市鹿邑县第二高级中学校2023-2024学年高一下学期月考测试(三)(6月)数学试题
名校
解题方法
10 . 已知
,
,
,
,且
.
(1)求
的值;
(2)求向量
与向量
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c944aa3fe9dfb03151a5b7e5af6e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7528af6a06e4c80770857a41112acfc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312c96c4243f2a7dd6fae4d78113e3ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4c9cbfde5f605ada0db6f0ef6ccd93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242b0af4f33851007b2052508dd3790e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5e0c3d054939ae02fb12a31ef91293.png)
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2024-04-10更新
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412次组卷
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3卷引用:黑龙江省哈尔滨市第三中学校2023-2024学年高一下学期第一次验收考试数学试卷
黑龙江省哈尔滨市第三中学校2023-2024学年高一下学期第一次验收考试数学试卷四川省成都市玉林中学2023-2024学年高一下学期4月诊断性评价试题数学试题(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)