名校
解题方法
1 . 已知
.
(1)若
,求x的值;
(2)若
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb56d1371bffcab33d91bef94dfa7dc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac265febbf99dccf51aa0a2253e61f1e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff8b9862d7499b294446d120db0a0a.png)
您最近一年使用:0次
2022-06-02更新
|
241次组卷
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4卷引用:吉林省白城市通榆县毓才高级中学2021-2022学年高一下学期第二次月考数学试题
2 .
中,点
.
(1)以
为对角线作正方形
,(
依次逆时针排列),求
的坐标;
(2)设
是与
垂直的单位向量,求
的坐标;并求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5df19f304b6ce46fd071ef2e9d4891.png)
(1)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b977f9880c3acc912c36aa3e2df56c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931ed163904c39b41cca008c3e5bb1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7c19ffd67b5edd77b02d893f3c4156.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184c6736108865aa9ba3680f3d50526a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b62ea9f2ffb1342d9edc22e9649cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184c6736108865aa9ba3680f3d50526a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e8e31b5e1ade2238271c0eaf321438.png)
您最近一年使用:0次
名校
3 . 如图,
为线段
的中点,
,
,设
,
,试用
,
表示
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a9a7e9187a8d25b268bd4cc9342cbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902679a5126443f3b184c141e0ed6694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93073e4f4e45258852e499bc2becf9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683339de2afddad19127f3cb480de6c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd0cecf5c102254b9755e42a80c3948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd98a891fa65f2fc6688001b03185d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f90e16e18b1e88ebb1ab811d06be76.png)
![](https://img.xkw.com/dksih/QBM/2017/5/10/1683941195087872/1684173603250176/STEM/8e1366ace73d46409084b2fe00a7eff1.png?resizew=194)
您最近一年使用:0次
2017-05-10更新
|
920次组卷
|
3卷引用:吉林黑龙江八校联合体2016-2017学年高一下学期期中考试数学试题
4 . 已知平面直角坐标系内三点
、
、
在一条直线上,满足
,
,
,且
,其中
为坐标原点.
(1)求实数
,
的值;
(2)设
的重心为
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71eb98f5fae49f695ea1beea0e9a1d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5ee132822fe177349733feee41a8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebeac315bb91b2d6ab40c7eb00d8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfe4da6f357e55927d25d9d27ea8717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3304bc1372275307dce0bf4e98b8f3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29d6bb411a032e06a1f7ed0ea2eed22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316e85517919c422ecd81c95fb367d57.png)
您最近一年使用:0次
2017-05-10更新
|
736次组卷
|
4卷引用:吉林黑龙江八校联合体2016-2017学年高一下学期期中考试数学试题
名校
解题方法
5 . 在
中,角
的对边分别为
,向量
,向量
,且
.
(1)求角
的大小;
(2)设
的中点为
,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed498b8aab0dfed96bd7d540f55fc018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0ae8e92dd3119d41f2c830ea526516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ace74bfb716753490ebe0e740ff5baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ced53f3511b0e4c57d8fc83c112ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4f5ec6788f87577eb8352fd8abf635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3724ff82289aa5907892b50f936677cb.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)设
![](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/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74094c51b5ee19992e12e98bfab66d77.png)
您最近一年使用:0次
2017-02-21更新
|
6619次组卷
|
10卷引用:【全国百强校】吉林省梅河口市第五中学2018-2019学年高一3月月考数学(文)试题
【全国百强校】吉林省梅河口市第五中学2018-2019学年高一3月月考数学(文)试题吉林省通化市梅河口市第五中学2018-2019学年高一下学期3月月考数学(理)试题吉林省松原市前郭尔罗斯蒙古族自治县第五中学2021-2022学年高一下学期第一次线上测试数学试题2015-2016学年内蒙古鄂尔多斯一中高一下期末理数学试卷2016-2017学年广东省揭阳市第一中学高二上学期期末考试数学(理)试卷天津市第七中学2019~2020学年高一下学期期中考试数学试题甘肃省金昌市永昌县第一高级中学2020-2021学年高一下学期期末数学试题苏教版(2019) 必修第二册 一课一练 第9~12章综合检测安徽省合肥市第四中学2023-2024学年高三上学期学情调研与诊断(三)数学试题内蒙古赤峰二中2023-2024学年高一下学期第一次月考数学试题