解题方法
1 . 如图,点
为
的边
上一点,
,
为边
上的一列点,满足
,若
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/88f6e0a4-9ef1-470f-a290-0967bbc20894.png?resizew=270)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/c8b39d921d1fdcb650b244b96250d84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ebe93fd288b44ec9eb59dbbdecc60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef4ead956d3a2be9c5fb474dbbb50bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/16/88f6e0a4-9ef1-470f-a290-0967bbc20894.png?resizew=270)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 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
在仿射坐标系
中的坐标.若在此仿射坐标系下,
的坐标为
,
的坐标为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bead945284ae967c8c526c9a73a26e6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/10/7aa129be-e946-4e51-a03e-7d1b6a23f242.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c092d69df76faf1e2133dc96b466ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8315ec34019d719771152be2252106e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf39ca3294f5520518dd4f1c0609876.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/0725eb3ba34ec2631d77a36385628059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82973c2b6d1c407318545f1c0f32ec2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911c0a2ab5e2e85f1ad267f41cb96b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794efd8cf0cc386faa170d01f357b1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0957995c8c5ceae1564e4f87bc9b16ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bead945284ae967c8c526c9a73a26e6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/10/7aa129be-e946-4e51-a03e-7d1b6a23f242.png?resizew=170)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
3 . 如图,在
中,点
为
的中点,点
在
上,
,点
在
上,
,那么
等于
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/29/798f3eac-c858-4844-94dd-1b5ad0a424b8.png?resizew=161)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9178fc8b5d65aa75fa9196294a0db7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c6b3f6767fdd21437cf36624195cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94007b4ec95d940c4970e9efc12d1888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898abd67a657306354af1846972f149d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/29/798f3eac-c858-4844-94dd-1b5ad0a424b8.png?resizew=161)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-12-06更新
|
1408次组卷
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7卷引用:湖南省常德市临澧县第一中学2021-2022学年高三上学期第四次阶段性考试数学试题
湖南省常德市临澧县第一中学2021-2022学年高三上学期第四次阶段性考试数学试题广东省东莞市东莞外国语学校2024届高三上学期第四次月考数学试题湖北省咸宁市2018届高三重点高中11月联考数学(理)试题湖北省咸宁市2018届高三重点高中11月联考数学(文)试题甘肃省武威市凉州区武威第一中学2020届高三上学期期中数学(理)试题广东省佛山市第一中学2019-2020学年高一下学期期末数学试题(已下线)专题24 平面向量的几何运算与坐标运算-备战2022年高考数学一轮复习一网打尽之重点难点突破
名校
4 . 长度都为
的向量
,
的夹角为
,点
在以
为圆心的圆弧
(劣弧)上,
,则
的最大值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911c0a2ab5e2e85f1ad267f41cb96b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794efd8cf0cc386faa170d01f357b1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.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/edeb12d08bc43eaa3dfc9b17068902f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-12-06更新
|
1529次组卷
|
2卷引用:2019届湖南省长沙市第一中学高三第一次月考数学(理)试题
解题方法
5 . 已知正方形
的边长为3,
为线段
靠近
点的三等分点,连接
交
于
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49282b65e862d243e4669252c6953ef7.png)
![](https://img.xkw.com/dksih/QBM/2017/11/20/1821134534172672/1824074024869888/STEM/f040e461ab094a2db21889cd223e114f.png?resizew=205)
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49282b65e862d243e4669252c6953ef7.png)
![](https://img.xkw.com/dksih/QBM/2017/11/20/1821134534172672/1824074024869888/STEM/f040e461ab094a2db21889cd223e114f.png?resizew=205)
A.-9 | B.-39 | C.-69 | D.-89 |
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2017-11-24更新
|
602次组卷
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2卷引用:福建省福清市校际联盟2018届高三上学期期中考试数学(文)试题
名校
解题方法
6 . 在
中,点
是
的中点,过点
的直线分别交直线
,
于不同两点
,若
,
,
为正数,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba123703956b30a1bcd59dd9191ba53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9931d440ddf7bcd2182d8f0d5c8f0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
A.2 | B.![]() | C.![]() | D.![]() |
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2017-11-18更新
|
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3卷引用:吉林省实验中学2018届高三上学期第三次月考数学(文)试题
名校
7 . 在平行四边形ABCD中,点E为CD中点,点F满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd0dec7927c0e486f193c59c648c317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-11-18更新
|
615次组卷
|
3卷引用:宁夏银川一中2018届高三上学期第二次月考数学(文)试题
8 . (1)在直角坐标系
中,已知点
,
,
,点
在
三边围成的区域(含边界)上.若
,求
;
(2)在平行四边形
中,
,
,连接
、
相交于点
,若
,求实数
与
的乘积.
![](https://img.xkw.com/dksih/QBM/2017/11/14/1817079258783744/1818439297310720/STEM/8c3d78be78564bc4b44526c759d309fd.png?resizew=277)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8520a14da6394d9cbdb3ce781cff511b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9827b42f7084defde57776a438eefa9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d3c69008009bed1a23c397fb7b99be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129d003027095df9b8db1eef1345bc6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07bf7608da5d60e31c0973fd8ac2ecb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02f2232f758f277a7449faba0871c04.png)
(2)在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6335eb644513a522541b9542970e2469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e0f95d849659f39e51a1a825bdb90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21cd65e6f7ff425035aead4203b3a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://img.xkw.com/dksih/QBM/2017/11/14/1817079258783744/1818439297310720/STEM/8c3d78be78564bc4b44526c759d309fd.png?resizew=277)
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9 . 在边长为1的正三角形
中,设
,
,点
满足
.
(1)试用
表示
;
(2)若
(
,且
),求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef7f1e7a48166499a172934b4a8e25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a3851b0546032545125a2ee6a7c00c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2544d2219b85e4f5fa78ff110a7a1e30.png)
(1)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42503437fb44722722cd20835f11d233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/506ed205f69a064c4091e152f5da7087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39145de56f3127e1b04b8b8db0d3cfa8.png)
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2017-11-16更新
|
497次组卷
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2卷引用:安徽省滁州市定远县重点中学2020-2021学年高三上学期11月质量检测数学(文)试题
名校
10 . 设
是
所在平面内一点,且
,则
( )
![](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/faedf53f92bfd0a57430506422cded2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d7751924508f9a250113248ee4c79f9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-11-16更新
|
543次组卷
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2卷引用:重庆市西南大学附属中学校2022-2023学年高三上学期12月月考数学试题