2011·辽宁丹东·一模
1 . 已知
内角A、B、C所对的边长分别为
,若
,
,
,
则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cdf6426f0eaa95c31648895d35fe165.png)
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知关于
的方程
的两根为
和
,
,
求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bfc9a414c71554f9b41f98238be6ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78da1535bb82994c4c2e48a427418748.png)
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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14-15高三上·湖北·阶段练习
名校
解题方法
3 . 已知
,则
的值为_____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ae864722cc9e9ef6ec3b96aebbdfef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661522b55b36e2bf7cb7cb98f0d76ed2.png)
您最近一年使用:0次
2016-12-02更新
|
684次组卷
|
6卷引用:辽宁省庄河市高级中学2016-2017学年高一下学期期末考试数学(理)试题
辽宁省庄河市高级中学2016-2017学年高一下学期期末考试数学(理)试题辽宁省庄河市高级中学2016-2017学年高一下学期期末考试数学(文)试题(已下线)2015届湖北省重点中学高三上学期第三次月考理科数学试卷(已下线)2015届河南省名校高三上学期期中理科数学试卷(已下线)2015届河南省名校高三上学期期中文科数学试卷2015届内蒙古巴彦淖尔市第一中学高三上学期期中考试理科数学试卷
10-11高一下·辽宁大连·期末
名校
4 . 已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce067bb5c96284138c862c80b9775ed3.png)
(1)求
的值;
(2)求函数
的最小正周期和单调增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce067bb5c96284138c862c80b9775ed3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9398b93f6a15cda9e9244194f80c48a.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb6c647c7e9dda3bd6a4ff4dd3dcc58.png)
您最近一年使用:0次
2011·辽宁丹东·一模
解题方法
5 . 已知
,
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb616b9843cc67f5def0fbfc7ec863ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dcadd1781ee9177e9bc76ce48afdd0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4e4632cb13e71f55d4235bc650d019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb616b9843cc67f5def0fbfc7ec863ce.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10-11高三上·广东湛江·阶段练习
解题方法
6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6abc4dc9045b5d50f5756d4681b9a47.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6abc4dc9045b5d50f5756d4681b9a47.png)
您最近一年使用:0次
10-11高一下·辽宁本溪·期末
7 .
的内角A,B,C的对边分别为a,b,c,且
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e86ed9f77f21ea33018a929414fcf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e3fc39d2b508cc1cae769a5e7266c0.png)
您最近一年使用:0次
8 . 已知点
在直线
上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a99ab843f78125ac2c973876c11668f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca8711c5fc0d13e132843a615f32c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
您最近一年使用:0次
2017-04-20更新
|
570次组卷
|
5卷引用:【省级联考】辽宁省六校协作体2018-2019学年高二上学期期初考试数学试题
10-11高二·黑龙江·阶段练习
解题方法
9 .
,
,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0134d57e0c86a60b58226a8dfc105269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aca7d3bd93584103a48bc8608733018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ea05cb92b3a76fef530d2ddb0d8b36.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知
,
,
,
,
.
(1)若
,求角
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68773d21eb81ed550ab85ca0999c03c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d7814b664444847f2cffd0a38552d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf24307985d773a4bcb3d6da5112ac5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8c4ab5b5802319270b65a561442dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc15fe366818ef98c68d2b15db75ca2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b27d017dca1ff587b4ec34bb48ffc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88336c69458ff4289ac85b6c5be57752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d425a266262b5cdac5ba680e96f3d883.png)
您最近一年使用:0次