名校
1 . 已知向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31f58e1a076ff63b3d88974781edac7.png)
,且
,
,其中
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c39a715d1b3a985c20aa399f4394514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31f58e1a076ff63b3d88974781edac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7253dfe76f7ed7c33921776bb0e001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f32595de21ddf175783168ce26d629d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5732b7447972dda107bf1a525aca5ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaa8040b9b8e341d7fda88371d91b0a.png)
A.![]() ![]() ![]() | B.![]() |
C.当![]() ![]() | D.![]() ![]() |
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2 . △
内接于半径为2的圆,三个内角
,
,
的平分线延长后分别交此圆于
,
,
.则
的值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5dc69fbf683181f9f2c8205a73dd4b4.png)
![](https://img.xkw.com/dksih/QBM/2021/4/15/2700211155566592/2806747262025728/STEM/be8d76a82ba847a8b8a5edc9dfe8e517.png?resizew=217)
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3 . 已知
,
,则向量
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c2716c7b756c1c9021e3e8d24e0fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455d79be489ddfe6a2f5a7033b22a864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
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4 . 数列
是公差不为0的等差数列,且
,设函数
,若
,则
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88100914285eae9e34c6f8ce75065f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c51df29a1f793c4b24734ef69702868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2470cc00dfdb85360691f11d2f778e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4025d2798141ceb5489785638e6eb36a.png)
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5 . 在锐角
中,角
、
、
的对边分别为
、
、
,若
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](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/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/2b19988d792b5252222f0a7acf7ef5fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
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2017-06-29更新
|
1866次组卷
|
4卷引用:江苏省盐城市2016-2017学年高一下期末数学试题
江苏省盐城市2016-2017学年高一下期末数学试题【全国百强校】重庆市彭水一中2017-2018学年高一下学期期中考试数学试题(已下线)专题3-3解三角形压轴综合小题-2(已下线)第一次月考填空题压轴题十四大题型专练-举一反三系列