名校
1 . 如图所示,在
中,
,
,
,
.
(1)试用向量
,
来表示
,
;
(2)若
,求证:D,O,N三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6526c7fe1904af8366a2845ad441540c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a814303dd703d9068b364f317c14d96e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/10/55136a45-6e5e-48fd-9183-2ac86bfb3739.png?resizew=154)
(1)试用向量
![](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/9465e4f69188514f560f27449bddfe6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6d728b430549f00bb9c0a7bf8bf7d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f326c6db10529253acdf12b691d19ba.png)
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3卷引用:安徽省皖北县中联盟2022-2023学年高一下学期5月联考数学试题
名校
2 . 如图,斜坐标系
中,
,
分别是与
轴,
轴正方向同向的单位向量,且
,
的夹角为
,定义向量
在斜坐标系
中的坐标为有序数对
,在斜坐标系
中完成下列问题:
,
的坐标分别为
,
,计算
的大小;
(2)已知向量
的坐标为
,向量
的坐标为
,证明:若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.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/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5253a9a71037d60059b60237824193b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cb7ee166966ed0b1605c263e433cf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc77d6da6e8f3ad5c239e7cc6c9930c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad42625f296d2a4b65180e2f7b776beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98fdaf601fdec6521e6d92d24591955c.png)
(2)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56720e2f2b0ddd72156da495923698da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75578eb4a8555e6cfb6d743a509a612f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2852ae85cfcc804b3192ea8543c88938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a11b2879ef7f7db79f241f5c4280fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eea876996fab48cf16290c1c66a5563.png)
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解题方法
3 . 如图所示
中
,
,
是
的重心,
边上的高为
,过
的直线与
,
分别交于点
,
,已知
,
.
(1)求
的值;
(2)若
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4425dc7c346e4597c0521d7f636174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3605b320cae7b4a85aa273dfb7e606.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/55fa7f9a-44e0-400d-84da-0b80ede2fa03.png?resizew=156)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587b693b82241eb9c32cdbb96c209f33.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45373166e0a004b3b4d910655d409b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c6d5aeee562064b9bb703fa538413d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61d2d153c31e0a4a9ca234ba3331590f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267661c8e1063b0d18dce70c5e6d1b5d.png)
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2卷引用:安徽省安庆市第二中学2023-2024学年高一下学期4月期中考试数学试题
名校
解题方法
4 . 已知向量
与
的模均为
,且
,点
在以
为圆心的劣弧
上运动,若
,
,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e6342a5103280b880fd21ebc86f9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/e64541d7f445079207b6f671adc7d662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5722a81710cd95ffe5c16c51b1700c.png)
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5 . 如图,已知四边形ABDE为平行四边形,点C在AB延长线上,且
,
,设
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/18/d1ae1687-3f9c-4770-b14f-c94c54d9ab76.png?resizew=229)
(1)用向量
,
表示
;
(2)若线段CM上存在一动点P,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821e5bcfaeac1bb0f29f561a4c8fef09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e26b615f11fd107ef65c07f5c3f18da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f054ba28c6224f7bf0289fce04fecba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/18/d1ae1687-3f9c-4770-b14f-c94c54d9ab76.png?resizew=229)
(1)用向量
![](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/bc1070a28cb9cb8553c29747d1993b16.png)
(2)若线段CM上存在一动点P,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c937b3c1e7dffe2e5551a45fc767faa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd4c403eb16206d21b5e040509a33ea.png)
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6 . 如图,在
中,
,点E为AC中点,点F为BC上的三等分点,且靠近点C,设
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/18/5bffe54f-8e14-4d81-896d-4fdc35f7c7d6.png?resizew=170)
(1)用
,
表示
,
.
(2)若
,且
,求BC的长.
(3)若EF与CD交于点G,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0019a40382ab3b0ed0b127f75eabe48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319ad2785c82f621c4b807bb9a2493c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a6facc3f8956c8fea30f60455804f1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/18/5bffe54f-8e14-4d81-896d-4fdc35f7c7d6.png?resizew=170)
(1)用
![](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/bc1070a28cb9cb8553c29747d1993b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316c97c5b6f7c0fbdf7b9e4b9fccb661.png)
(3)若EF与CD交于点G,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46da4c5a4b5156f8ea762553d8ed0d18.png)
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解题方法
7 . 如图,
为
内任意一点,角
的对边分别为
,则总有优美等式
成立,此结论称为三角形中的奔驰定理.由此判断以下命题中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4333a745c139b49a6c906baae7facd.png)
A.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
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4卷引用:安徽省皖中名校(宿松中学、程集中学等)2022-2023学年高一下学期期中联考数学试题
安徽省皖中名校(宿松中学、程集中学等)2022-2023学年高一下学期期中联考数学试题(已下线)重难点专题01 妙用奔驰定理解决三角形面积比问题-【帮课堂】(苏教版2019必修第二册)广东省广州市广雅中学2023-2024学年高一下学期期中数学试题(已下线)专题02向量三大定理及最值范围(2) -期末考点大串讲(苏教版(2019))
名校
8 . 如图,在
中,
,点
是线段
上一点.
是线段
的中点,试用
和
表示向量
;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23c10fcb4fe0ccc015f8bfc60744589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7239b3f2d88c2e45e17e5de9ae1a332.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86e51cb23074f2fffb7e48174607373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7卷引用:安徽省皖中名校(宿松中学、程集中学等)2022-2023学年高一下学期期中联考数学试题
安徽省皖中名校(宿松中学、程集中学等)2022-2023学年高一下学期期中联考数学试题(已下线)第3讲 平面向量(1)-《考点·题型·密卷》(已下线)高一下学期数学期末押题卷01-期末高分必刷题型山东省枣庄市第三中学2022-2023学年高一下学期6月月考数学试题山东省枣庄市滕州市第二中学2022-2023学年高一下学期6月月考数学试题重庆市铁路中学校2023-2024学年高二上学期开学考试数学试题黑龙江省牡丹江市第二高级中学2023-2024学年高一下学期期中考试数学试卷
名校
解题方法
9 . 大约在公元222年,赵爽为《周髀算经》一书作序时介绍了“勾股圆方图”,亦称“赵爽弦图”(如图1).某数学兴趣小组类比“赵爽弦图”构造出图2:
为正三角形,
,
,
围成的
也为正三角形.若
为
的中点,①
与
的面积比为___________ ;②设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e507d3941363e9dbeac8be35134727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/c1bd98f1-c926-4719-b25c-602039f53dd5.png?resizew=272)
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|
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4卷引用:安徽省六安第一中学2023届高考适应性考试数学试题
名校
解题方法
10 . 如图,在四边形
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4924cef4ea7427027aa6e1e6901f7df5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/5/9caa0e56-a9fd-4ac1-a70e-3bb650d6089a.png?resizew=181)
(1)证明
;
(2)设
,求
的最大值,并求
取得最大值时
的值为多少.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4924cef4ea7427027aa6e1e6901f7df5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/5/9caa0e56-a9fd-4ac1-a70e-3bb650d6089a.png?resizew=181)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40094378a6dbbf2071dabeae711a41a4.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d38ab3b6048946e6012099d0f2642d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1884dd7bea1b00c41563bc4abcd9d422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1884dd7bea1b00c41563bc4abcd9d422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2023-05-02更新
|
277次组卷
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2卷引用:安徽省卓越县中联盟2022-2023学年高一下学期期中考试数学试题