名校
1 . 已知
是斜三角形,内角
所对的边的长分别为
.已知
.
(I)求角
;
(II)若
=
,且
求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edd51c782333e04862704165622ad68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbf5887ebf0a2fb425dc594bb983585.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573177637593088/1573177643655168/STEM/b6c58aa8b3e146afa83f8643cfed3404.png)
(I)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce0249a3ff99c083fa4421877549db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92217ba1661fa14b9503e0ac2ec105b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
您最近一年使用:0次
2016-12-05更新
|
780次组卷
|
10卷引用:辽宁省沈阳市东北育才学校2015-2016学年高三上学期第一次模考数学试题(文科)
辽宁省沈阳市东北育才学校2015-2016学年高三上学期第一次模考数学试题(文科)2016届辽宁省抚顺市一中高三10月月考文科数学试卷2016届江西省上高二中高三第七次月考文科数学试卷2016届山西省太原市高三下第三次模拟文科数学试卷2016-2017学年辽宁庄河高中高二10月考文数试卷2016-2017学年辽宁庄河高中高二10月考理数试卷2015-2016学年广东省普宁一中高二下第一次月考文科数学试卷2020届甘肃省河西五市部分普通高中高三第一次联合考试数学文科试卷广西北流市实验中学2019-2020学年高一下学期期中考试数学试题甘肃省武威市民勤县第一中学2022-2023学年高二上学期开学考试数学试题
解题方法
2 . 在
中,内角
,
,
的对边分别为
,
,
,且
,已知
,
,
.求:
(1)
和
的值;
(2)
的值.
![](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/069390dd908ff203327958117a226593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c158027938822f7a229324647d9e0abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9aa264e9841cb820cc0fd29f79ee958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916d456a55434fcf304260fb94c321ed.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c631f55f2b59c07c4654f1fd2590ec.png)
您最近一年使用:0次
2016-12-04更新
|
292次组卷
|
2卷引用:2017届辽宁庄河市高级中学高三9月月考数学(理)试卷
3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3dab722b080bb5abbc26be6ba230e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4aea77909992c7bb9d395c403c2100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3dab722b080bb5abbc26be6ba230e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知函数
,
,
.
(1)将函数
化简成
,(
,
,
),
的形式;
(2)求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47df03bde99a389d4ade9d975055b6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abb842fa6af49a65b6b454ae27ce0b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6ff0b0e9beb91a0fe66c0adb5b9a2a.png)
(1)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179e5599e7664b760dce96ce42e7cda5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d06f0f024f357b10c1ee43f7afae23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9659616b5399bb596b3fa14b2c6889a9.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
解题方法
5 . 化简
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962d12705cd6fdb6f4e6e1ae8d62c00c.png)
A.1 | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
6 . 函数
的最小正周期是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fcef8fec6b9b71a94198b8d6b37ecbd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 若
的三边
及面积
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e3fc39d2b508cc1cae769a5e7266c0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d101781c8c3695e34a6bd8c54990ed9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e3fc39d2b508cc1cae769a5e7266c0.png)
您最近一年使用:0次
2016-12-04更新
|
311次组卷
|
2卷引用:2016届辽宁省锦州市高三下学期质量检测二理科数学试卷
8 . 在
中,
分别是角
的对边,且满足
.
(1)求角
的大小;
(2)设函数
,求函数
在区间
上的值域.
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/28dca36754814f5fa12cea09e90ad997.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/a62df917af504539afc07f5c525becdc.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/684a457a9c0e4d4b9835350c35767ae2.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/00418cb4a72b45a79865e00827a193db.png)
(1)求角
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/7511997c98ad47ad8bc6d17aa5326cc5.png)
(2)设函数
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/4d329a6ea2c04466a0e37e9985ac584d.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/cb66d3b62e674d428227ba32e4869e3e.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572941314162688/1572941320314880/STEM/92270a1192844cf1b5aeeabca2f61274.png)
您最近一年使用:0次
2016-12-04更新
|
526次组卷
|
2卷引用:2016届辽宁大连八中、二十四中高三联合模拟理数学试卷
解题方法
9 . 已知向量
,函数
.
(1)求函数
的最小正周期;
(2)求函数
在区间
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f52d7c0c3a1487cc6ff148f4a6df3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2aa9396250e0149a5299b4bb37f6e14.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0b1b34a0cb69bd9e0a4622b6352968.png)
您最近一年使用:0次
10 . 若偶函数y=f(x),x∈R,满足f(x+2)=﹣f(x),且x∈[0,2]时,f(x)=3﹣x2,则方程f(x)=sin|x|在[﹣10,10]内的根的个数为_____ .
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