1 . 在
中,点
为
所在平面内一点.
(1)若点
在边BC上,且
,用
表示
;
(2)若点
满足
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddecea84834f1ad110b363776846c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471bc8ce66c3e550baaf97be9d742e33.png)
,求
.
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac077c25a98e791e4a81b1c48c09015d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be656083580a03c6481fb75881b84f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7239b3f2d88c2e45e17e5de9ae1a332.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c27eda162792128da25f541303a3088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2688a00327f7f96de6a77ab9b1c9ae7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddecea84834f1ad110b363776846c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471bc8ce66c3e550baaf97be9d742e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1a0c7211cb871554b9e2f17100d739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5cb63aeea0b37799404c8fec092b21d.png)
您最近一年使用:0次
解题方法
2 . 已知点
为
中边
上一点,
.
,求
的值.
(2)设
,
①若
,求
在
上的投影向量;
②若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9105200dcfb31b0f7f6f0b385f12589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419bec2bb15ceb95999eaee4a451d84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2797d3cbf5718e2cab76af3b53679f86.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dbc63c370b769fbafc6e193a1f61df2.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe336601a7861afeb7796c737cb8f45f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45eac6e59bd3c4fe72d3254a9dbb927c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbaeae7045ad94158cdf5ae97073bc17.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd873c768b105640a16c953cea6f0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27964e6ff5ccfcff357caecd01d22997.png)
您最近一年使用:0次
名校
解题方法
3 . 如图,设
,
是平面内相交成
角的两条数轴,
,
分别是与
轴,
轴正方向同向的单位向量,若向量
,则把有序数对
叫做向量在斜坐标系
中的坐标,记为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4224bf1cbcd51f4cbdce93d981d65c5a.png)
,
计算
的大小
(2)若在该坐标系下,已知
,
,
求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14069d21d32c724f0ebe3e311f114c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.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/e5253a9a71037d60059b60237824193b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9aa1d34d66a6876aa0566c8fc8b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4224bf1cbcd51f4cbdce93d981d65c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18f32baa8e324b33d707f8d59e0a4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ea76d1bd036f5336bb7bdd65984c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4336e15cd9b12893426bbf7bba3a2353.png)
(2)若在该坐标系下,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f537bc105866b16194cd345edc651f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8835f2c4b86b4be1082ac201c36e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9765a33cab40e7f0bb46e9f78b33ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985a67e5e24e049558cd5289b6ee9ce5.png)
您最近一年使用:0次
名校
4 . 已知点G为
三条中线的交点.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147ab2d582e60bee6d81b27236e7288b.png)
(2)若点
为
所在平面内任意一点(不与点G重合),求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82561e3b73684db872b92c6bf120c42f.png)
(3)过G作直线与AB,AC两条边分别交于点M,N,设
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147ab2d582e60bee6d81b27236e7288b.png)
(2)若点
![](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/82561e3b73684db872b92c6bf120c42f.png)
(3)过G作直线与AB,AC两条边分别交于点M,N,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501d71c6ac314cd9f8634c58499fe2c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
名校
5 . 已知
中,
,点
在边
上且满足
交CE于点
.
;
(2)若点
为边
中点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5a6d9ef5d5519850767a72b46e8aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2624fb557196307eff5a86c83a9ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4119d0e66e51ec383efb03069d88f9bf.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f6ddc36bf4b83ed58460a6dee3dbb3.png)
您最近一年使用:0次
名校
解题方法
6 . 在边长为4的等边
中,
,D为边AC的中点,BD与AM交于点N.
(1)求证:
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1410e06dca2ccd5a534fc3516aa80f.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ca397fa0f49bcaf40aec8a722a1524.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653cdfbe424eadcebc0fd4acee8b8012.png)
您最近一年使用:0次
解题方法
7 . 如图,在矩形
中,点
是
的中点,
是
上靠近点
的三等分点.
,求
的值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804e7ef45aea1cd3ce1c2fee84db3ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb290dffe61bf232ae20c531d8d3d1b.png)
您最近一年使用:0次
8 . 如图,在平行四边形
中,
分别是边
的中点,
与
交于点
,设
.
表示
;
(2)求
的值;
(3)求
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92b49a225184d07baf4781f0655e25d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e426224c3a3ce9bb5a731eed81c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dfdbbc32d83b85bf7725dbb320ca09e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33da308d92e9589e211ca612b3c7da76.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bce28d31b8e9b17167207069dacbb7.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa70e7c9ef8b856b494d370b7d76482.png)
您最近一年使用:0次
2024-04-04更新
|
476次组卷
|
2卷引用:福建省厦门市杏南中学2023-2024学年高一下学期3月月考数学试题
名校
9 . 如图,在
中,
是
的中点,
.
,
,求
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662c1357657b89d42e43ad295985389f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dc39e2113669164b4894c2ef739f0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d81d732204a3c2384a27606f858677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcedc17f292990a25ffe350f8d7be432.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ba7e0374dabeb58e459f47c5baf952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-04-02更新
|
626次组卷
|
2卷引用:福建省莆田第二十五中学2023-2024学年高一下学期第一次质量检测数学试题
名校
解题方法
10 . 在三角形
中,
,
,
,
为线段
上任意一点,
交
于
.
.
①用
,
表示
;
②若
,求
的值;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b9d8a08fc52c31cc1a7f527d18b55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f386f5b56b07b96f2600da1be15414a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea8abb4cab55296ca7fc63de0af0aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a428233496c5e21f2c20ebaf0c312e.png)
①用
![](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/6d021a5c98388463d577675e58068aa7.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee26e5f99f9cb23e5dc8de1884f3cd31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb370f9f62b28ff9ea09da2d3934c9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4553043550df2f34059a904dd59a458c.png)
您最近一年使用:0次
2024-03-31更新
|
390次组卷
|
20卷引用:福建省华安县第一中学2023-2024学年高一下学期第一次月考数学试卷
福建省华安县第一中学2023-2024学年高一下学期第一次月考数学试卷福建省泉州市安溪第八中学2023-2024学年高一下学期4月份质量检测数学试题辽宁省大连市2022-2023学年高一上学期期末数学模拟试题(已下线)9.3 向量基本定理及坐标表示2-【帮课堂】(苏教版2019必修第二册)(已下线)6.3.1平面向量基本定理-高频考点通关与解题策略(人教A版2019必修第二册)(已下线)6.3.1平面向量基本定理(已下线)第9章 平面向量 章末题型归纳总结-【帮课堂】(苏教版2019必修第二册)(已下线)2.4 平面向量基本定理及坐标表示-同步精品课堂(北师大版2019必修第二册)(已下线)专题2 平面向量的结论与应用(已下线)模块三 专题2 专题1 平面向量运算(已下线)专题3 平面向量的应用(期中研习室)(已下线)高一下学期期中复习解答题压轴题十八大题型专练(1)-举一反三系列(人教A版2019必修第二册)(已下线)模块二 专题2 平面向量的结论与应用(苏教版)(已下线)模块三 专题2 解答题分类练 专题1 平面向量运算(解答题)(苏教版)(已下线)模块二 专题4 平面向量的结论与应用(北师大版)(已下线)模块三 专题2 解答题分类练 专题3 平面向量各类运算(解答题)(已下线)第二章平面向量及其应用章末十六种常考题型归类(1)-【帮课堂】(北师大版2019必修第二册)(已下线)高一下学期期末复习解答题压轴题二十四大题型专练(1)-举一反三系列(人教A版2019必修第二册)(已下线)高一下学期期末数学试卷(巩固篇)-举一反三系列(人教A版2019必修第二册)(已下线)专题02 高一下期末真题精选(1)-期末考点大串讲(人教A版2019必修第二册)