1 . 在△ABC中,若A=60°,b=16,此三角形的面积
,则△ABC的AB边的长为
![](https://img.xkw.com/dksih/QBM/2016/4/15/1572595325804544/1572595331555328/STEM/6514a98e34424f4b99a26a159160bf3a.png)
A.55 | B.![]() | C.51 | D.49 |
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2 . 已知
,那么
的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9b3f601916f666f701224f77c4565c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd703fee7502e2e32194bb544861eb81.png)
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3 . 已知向量
与
共线,设函数
.
(1)求函数
的周期及最大值;
(2)已知△ABC中的三个内角A、B、C所对的边分别为
,若锐角
满足
,且
,
,求△ABC的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecde36f4d703ae44faf5884916c2bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2316ded025e726ca2139d5b5f221f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知△ABC中的三个内角A、B、C所对的边分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb0a2c0aaa39e59aaab67373872f287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11f594b16174b616c42abd2f78a2787.png)
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名校
4 . 已知
,则
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0fb765e7958655dbb4a132ddbf8364.png)
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2016-12-04更新
|
331次组卷
|
3卷引用:2016届江西省新余市四中高三上学期第三次周练理科数学试卷
5 . 已知
,且
,则
的值为________ .
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168482816/STEM/0b153d7cf6fe487ebf04d3de88477d87.png?resizew=112)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168482816/STEM/b937034145ab441893ba5eb908b8f665.png?resizew=68)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168482816/STEM/6926b58fcce645dfb595edbbd169ef66.png?resizew=74)
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6 . 在
中,
分别为角
的对边,且角
,若
,且
,则
的周长等于______ .
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/14d1b4c5a0594bc389e41bd4311c36a0.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/5ff1fe65a6704e80ad694c1576a3305a.png?resizew=40)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/c2e58ebf8e8842bbb3376f4c6af97c59.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/299c3cf1d2ea4a8589681b188b5f26d1.png?resizew=53)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/4c090b67b49f46faac9ea7fae2b79f68.png?resizew=96)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/9a2428840bb446a3bca87a74708997fe.png?resizew=102)
![](https://img.xkw.com/dksih/QBM/2016/3/3/1572516162592768/1572516168540160/STEM/14d1b4c5a0594bc389e41bd4311c36a0.png?resizew=45)
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2016-12-04更新
|
356次组卷
|
2卷引用:2016届江西省吉安市一中高三第二次质检理科数学试卷
7 . 已知函数
是奇函数,其中
,则函数
的图象
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421473067008/1572421479014400/STEM/270c7f37b94845c29d88bd0717ca1f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1b4cccd4dcbeaabb65fc543752dc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0bfc2a3aada98056c8df580227a0cb.png)
A.关于点![]() |
B.可由函数![]() ![]() |
C.可由函数![]() ![]() |
D.可由函数![]() ![]() |
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2016-12-04更新
|
439次组卷
|
3卷引用:2017届江西师大附中高三10月月考数学(文)试卷
解题方法
8 . 函数
,
,
,
,对任意的
,总存在
,使得
成立,则
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9b1c8b4e463b2d9e0ef8cdde8287cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d7a62ccffa29d98e4f389228e9477f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2b5ee1eabb64358a3d9db2349b6fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5a5e70f64f0933ae1e4ddec5fa2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347ac85769012f89d1f9951684e1d7b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 已知
则![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140497920/STEM/8329abdb835c4a0cb9a04edff1633a18.png?resizew=84)
_______________ .
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140497920/STEM/f171d898beec405a8673818efdf66a1e.png?resizew=255)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140497920/STEM/8329abdb835c4a0cb9a04edff1633a18.png?resizew=84)
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10 . 函数
的图象如图所示,为了得到
的图象,可将
的图象
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140309504/STEM/9d56bd24cbf849b8a25d6f808c317ce7.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140309504/STEM/770b950575ed459e9f192f3bd720223d.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140309504/STEM/da1d1c823b15410db3339880b65b1e27.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140309504/STEM/a8c91a0b83eb425ab2597ba11c0f91cf.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572414134927360/1572414140309504/STEM/9d56bd24cbf849b8a25d6f808c317ce7.png)
A.向右平移![]() | B.向右平移![]() |
C.向左平移![]() | D.向左平移![]() |
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