1 . 设向量
=(1,﹣2),
=(﹣3,2),若表示向量3
,2
﹣
,
的有向线段首尾相接能构成三角形,则
⋅
=
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/2269edc73dc9411d82a614181f72d213.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/41705f5097114586bc53acbfdd085ef0.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/2269edc73dc9411d82a614181f72d213.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/41705f5097114586bc53acbfdd085ef0.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/3c070e9b72264eeca7ceda05b32d64f5.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/7d65d3bf21f544cfb4afc1c755326f2e.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/3c070e9b72264eeca7ceda05b32d64f5.png)
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605881360384/1572605887094784/STEM/7d65d3bf21f544cfb4afc1c755326f2e.png)
A.﹣4 | B.4 | C.﹣8 | D.8 |
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2 . 在△ABC中,
,AB ="2," AC=1,E, F为BC的三等分点,则
=
![](https://img.xkw.com/dksih/QBM/2016/4/12/1572591534325760/1572591540166656/STEM/de3a3692eb8e42699aeca8b18364bc51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51599a7c62dff6b2a6d03ecdb123cd99.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知向量
,则实数k的值为___________ .
![](https://img.xkw.com/dksih/QBM/2016/9/14/1573021933821952/1573021939310592/STEM/05cd32a4be174513bd22d37562b3fbe9.png?resizew=236)
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4 . 函数
的图象中相邻的两条对称轴间距离为.
![](https://img.xkw.com/dksih/QBM/2015/10/10/1572253366255616/1572253372047360/STEM/12316f01feab41c8b057412116222db8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
296次组卷
|
3卷引用:2016届广东省惠州市高三第一次调研考试数学理试卷1
5 . 在△ABC中,|
|=|
+
|,|
|=4,|
|=3,若
=2
,则
•
的值为
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/c5a776e88afc4de6ba48655a07637975.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/f8f33d3684b14915b9f366e90012e6f7.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/d033ede67c654d2a9ad3dd4ca56f3b56.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/f8f33d3684b14915b9f366e90012e6f7.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/d033ede67c654d2a9ad3dd4ca56f3b56.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/64e60d3829854a0cbdfb64a94d6700c0.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/2b952e5c33104f40941fea6b4e95f3b3.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/8075fb5b086e40d09eac0e2101cdf05e.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592954769408/1572592960692224/STEM/bd9dddad69264f74852dac727e73b141.png)
A.![]() | B.﹣![]() | C.﹣![]() | D.﹣8 |
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6 . 已知向量
,且
与
共线,则x的值为_____ .
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546298961920/1572546304925696/STEM/7f921e24f1064efbbe1c8dde65bd4da3.png?resizew=200)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546298961920/1572546304925696/STEM/2ba0a6338b324ea88dbf3d8bab4bdeb5.png?resizew=38)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572546298961920/1572546304925696/STEM/ae43b70f8e0546a1a2ad20440ecf159d.png?resizew=10)
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7 . 已知向量
的夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d33ee1f52775bf9ba66e0fdf0ecbb35.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5588b114de3fc8a524cb1438733e9b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d33ee1f52775bf9ba66e0fdf0ecbb35.png)
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8 . 如图所示为函数f(x)=2sin(ωx+φ)(ω>0,0≤φ≤π)的部分图象,其中A,B两点之间的距离为5,那么f(﹣1)=
![](https://img.xkw.com/dksih/QBM/2016/3/9/1572527805251584/1572527811043328/STEM/4d61cb60695541a8bd5f06f4e0ff885d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/9/1572527805251584/1572527811043328/STEM/4d61cb60695541a8bd5f06f4e0ff885d.png)
A.2 | B.![]() | C.![]() | D.﹣2 |
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9 . 已知向量
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5050b430d6ed9b6f631eb297985a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555020174ed37ee945ef58f61ebf752c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59981d6431ea4ca3e63cd2c91eb96f1.png)
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10 . 图中的小网格由大小相等的小正方形拼成,则向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253b624ba9c16949db1f073825163c7b.png)
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572961266122752/1572961272168448/STEM/26a61d5edda8478399f4d9fde7067f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253b624ba9c16949db1f073825163c7b.png)
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572961266122752/1572961272168448/STEM/26a61d5edda8478399f4d9fde7067f8a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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