解题方法
1 . 在
中,
,
,
,若
为
的内心,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94bf00a17655f6cbea1d64f5d06c351.png)
A.6 | B.10 | C.12 | D.15 |
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2 . 已知非零向量
,
,
满足
,
,
,则
的最小值是______ ,最大值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1c55a9af9db9c6b93f9ed6126a518f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6647d702519f583c8965cd649d96e73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8992a2edd30bcc051bbe1face15300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83634e314df24df73ae37d25a44d20e3.png)
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3 . 函数
的最小正周期是_______ ,振幅是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eadaa4e6aae558c8038f7b22b1466a5.png)
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4 . 为得到函数
的图象,只需将函数
的图象
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1ec049f53766161afe4eee4938f1c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08921a72d608d1618d765569e752a4e.png)
A.向左平移![]() | B.向右平移![]() |
C.向左平移![]() | D.向右平移![]() |
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5 . 已知单位向量
满足
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_______ , ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a296b1859335a0f514a1a5fd14359d24.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f994a876391534efe497dc115a53e3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3efb004d6912a1ce24c319c5344b452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38aae7bf2fd68d87a39cd47da2781385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a296b1859335a0f514a1a5fd14359d24.png)
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6 . 为得到函数
的图象,只需将函数
的图象
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1ec049f53766161afe4eee4938f1c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/678bd0913243e08a0e38ce325aa5030d.png)
A.向左平移![]() | B.向右平移![]() |
C.向左平移![]() | D.向右平移![]() |
您最近一年使用:0次
名校
7 . 知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045c2045fb06db76556ba364f747cef8.png)
(1)当
时,求函数
的值域.
(2)设
的内角
的对应边分别为
,且
,若向量
.
与向量
共线,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045c2045fb06db76556ba364f747cef8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a1e7446e278cb3c3bda094bba5c858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3138d5af702eaed893ae384c4cb56e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a3b84a85d97f5befc4585641ac0c54.png)
与向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1823d4ef1254df615fbfc59c8a6cec32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
您最近一年使用:0次
2016-12-03更新
|
564次组卷
|
5卷引用:2016届浙江省嘉兴一中等高三第一次五校联考理科数学试卷
真题
8 . 已知点
的坐标为
,将
绕坐标原点
逆时针旋转
至
,则点
的纵坐标为.
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/7eb8d9d47fc94bf1aeb4c72e0e2f1a7a.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/fc98fd21de574837a2ff551489be022c.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/995aa500bf9943e6adda5fc1f6d01000.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/2fc1c1f1014e462db058eaf105941017.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/c19ed8874f414a128d2e3e3e6ff852c6.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/3d99c24f1ea541fd97243c4b48cacc0b.png)
![](https://img.xkw.com/dksih/QBM/2015/6/24/1572141761069056/1572141766582272/STEM/7dcc6e7d32b94ee2ae9c60f5bc6b618b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
2567次组卷
|
4卷引用:2016届浙江省富阳市二中高三上学期第二次质量检测理科数学试卷
2016届浙江省富阳市二中高三上学期第二次质量检测理科数学试卷(已下线)专题4.1 任意角和弧度制及任意角的三角函数-《2020年高考一轮复习讲练测》(浙江版)(练)2015年全国普通高等学校招生统一考试文科数学(上海卷)(已下线)2019高考备考一轮复习精品资料 【文】专题十五 任意角和弧度制及任意角的三角函数 教学案
13-14高三上·江西·阶段练习
9 . 设
是函数
的图像上任意一点,过点
分别向直线
和
轴作垂线,垂足分别为
、
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572ef72fba1b3ef282d0dc43b40c02fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
您最近一年使用:0次
2016-12-02更新
|
860次组卷
|
5卷引用:2016届浙江镇海中学高三5月模拟数学(理)试卷
2016届浙江镇海中学高三5月模拟数学(理)试卷(已下线)2014届江西师大附中高三年级10月月考理科数学试卷(已下线)2014届甘肃省兰州一中高考模拟四理科数学试卷(已下线)2014届甘肃省兰州一中高考模拟四文科数学试卷2012年全国高中数学联合竞赛试题