名校
1 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dce7587b4c86b491bbd20f29771292.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dce7587b4c86b491bbd20f29771292.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a642e3f37ab084e7c03d048a463cf97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d450aea0fb89e956fc4caa3a9c59fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a642e3f37ab084e7c03d048a463cf97.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知向量
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58971cb3514d7ba1c05a46dc076a8501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38a4a0911a4ddb5685d2026713c491c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-08-17更新
|
159次组卷
|
4卷引用:吉林省梅河口五中2016-2017学年高一下学期期末考试理数试题
名校
解题方法
4 . 已知平面向量
=(1,-3),
=(4,-2),
与
垂直,则
是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff409cd3886c767afb13c9a869c5f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6570cd7c2f81c9fcffd2c64664f1564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26fa2bfafbe07621c9c2026767c75bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff409cd3886c767afb13c9a869c5f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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5 . 与向量
=(-5,12)共线的单位向量的坐标是__________________ .
![](https://img.xkw.com/dksih/QBM/2017/7/18/1732690191048704/1733773685620736/STEM/07c243b68833447cb85bc96f69ed0bd8.png?resizew=13)
您最近一年使用:0次
2017-07-19更新
|
86次组卷
|
2卷引用:吉林省长春外国语学校2016-2017学年高一下学期期末考试数学(文)试题
名校
6 . 已知
,向量
与
的夹角为
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79573056d66b2779294109afeb2ca6e.png)
![](https://img.xkw.com/dksih/QBM/2017/7/18/1732690191048704/1733773685424128/STEM/ff55b58a42294efd8cfc6c49e9987013.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2017/7/18/1732690191048704/1733773685424128/STEM/ff265a1cd8d34ca9986c75e618ee316b.png?resizew=13)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d716f2f7c457cd68ebe38672ab23873.png)
A.![]() | B.![]() | C.2 | D.4 |
您最近一年使用:0次
2017-07-19更新
|
68次组卷
|
2卷引用:吉林省长春外国语学校2016-2017学年高一下学期期末考试数学(文)试题
名校
解题方法
7 . 在
中,
,
,
分别是内角
所对的边,
,
,若向量
,且
.
(Ⅰ)求
,
的值;
(Ⅱ)求角
的大小及
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38f550e95b2950f91e8ec1798b94109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d265972c67483cef041d4015085511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32b6dc307d12bbd6b850a67b0599620.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(Ⅱ)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2017-07-16更新
|
667次组卷
|
2卷引用:吉林省实验中学2016-2017学年高一下学期期末考试数学试题
名校
8 . 与向量
方向相反的单位向量是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e974ce644587309e2e001d98b03698.png)
A.(5,-12) | B.(-![]() ![]() |
C.(![]() ![]() | D.(![]() ![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知
,
.
(Ⅰ)求
的值;
(Ⅱ)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f55b8836b41be612a52ca9caf97006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b4cab645c97f6d1710f803ef6a8436.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db589bebb2f413b51ab7d684f7eb990.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95623f1623d94266f3807f7201074953.png)
您最近一年使用:0次
2017-07-12更新
|
100次组卷
|
2卷引用:吉林省梅河口五中2016-2017学年高一下学期期末考试理数试题
名校
解题方法
10 . 已知向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6d343208f0f5e3aab71004c245dabe.png)
________________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788fa471d53a8be8dd55f561aecbf99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ea73a7508e8762797367a7997c4e8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6d343208f0f5e3aab71004c245dabe.png)
您最近一年使用:0次