名校
1 . 已知
,若函数
满足
恒成立,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3814828395c4e7ac026b269a46bfed90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8667f3e239e2e1b46367d88b98eda96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179987e97d58633409218222a17814a9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知
的三个内角
的对边分别为
,若角
成等差数列,且
,
(1)求
的外接圆直径;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0ae8e92dd3119d41f2c830ea526516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af4cd80d3092f506d6326df7d552eb3b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.png)
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2020-10-20更新
|
371次组卷
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4卷引用:浙江省台州市新桥中学2020-2021学年高三上学期12月阶段性考试数学试题
3 . 已知向量
,
,
,且
的图像过点
和点
.
(1)求
,
的值及
的最小正周期;
(2)若将函数
的图像向左平移
个单位长度,得到函数
的图像,求
在
时的值域和单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8910b1fd0d35dce7befecc18902165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3f970ed97ab01bc386cbf6cfec5c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3536aeb7eb5d6cb2eecd840495ea1a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5576d66fe80dff100bca8b2030b20df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c9a536d3efcab3b84a6083386460e2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c487fec20bd809e0baf5cb39afe8979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21134785a5682aa3de4bfd5cb22a13f6.png)
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4 . 已知函数
.
(1)求函数
在
上的值域;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52a956d2e3c3e552622c4353ca173cb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f457df0f9d14437a7f0443bb297e6ee8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6ae6ecbf59f602c039745fa25fb9530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6fd3d88ecb6896cc7023aa1e79f96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
您最近一年使用:0次
5 . 已知
,若函数
的最大值为5,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b1b96f5050de3bc7ae53c7bf0c21e8.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041b7d814b44b80cb19bb53a2f18a7f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b1b96f5050de3bc7ae53c7bf0c21e8.png)
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2020-09-14更新
|
895次组卷
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3卷引用:浙江省平阳县浙鳌高级中学2021届高三上学期期初教学质量监测数学试题
浙江省平阳县浙鳌高级中学2021届高三上学期期初教学质量监测数学试题第10章《三角恒等变换》单元达标高分突破必刷卷(培优版)(已下线)第七章 三角函数(压轴题专练)-单元速记·巧练(沪教版2020必修第二册)
6 . 对于函数
,
,下列命题错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eef48b7e9d0785669a2b0df90cd3c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
A.函数![]() ![]() |
B.不存在![]() ![]() |
C.函数![]() ![]() |
D.存在![]() ![]() |
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20-21高三上·浙江·阶段练习
7 . 函数
的最小正周期是________ ,最大值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2225ab884319ccda979682c1b29f95e.png)
您最近一年使用:0次
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8 . 函数f(x)=3sin
cos
+4cos2
(x∈R)的最大值等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1020afcfd8b7de38dfd825373b86bdea.png)
A.5 | B.![]() | C.![]() | D.2 |
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2020-08-19更新
|
177次组卷
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4卷引用:2016届浙江省杭州市高三第二次质检文科数学试卷
2016届浙江省杭州市高三第二次质检文科数学试卷江苏省常州市武进高级中学2021-2022学年高二上学期阶段检测数学试题(已下线)测试卷33 三角恒等变换(A)-2021届高考数学一轮复习(文理通用)单元过关测试卷陕西省渭南市蒲城县2020-2021学年高一下学期期中数学试题
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9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14339873d8e4e5617a759d14708f811d.png)
(1)若
是第二象限角,且
,求
的值;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14339873d8e4e5617a759d14708f811d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f7cd1822f2279f526b28b53126cb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdebf473c80bfe5781253d7146191aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2020-08-01更新
|
308次组卷
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4卷引用:浙江省嘉兴市海盐第二高级中学2021-2022学年高二下学期3月阶段检测数学试题
10 . 已知函数
,
.
(1)求
的值;
(2)求函数
的最小正周期;
(3)求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358c5e2e4b2ba6b30a694483ec9c8f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2020-05-30更新
|
740次组卷
|
2卷引用:浙江省金华市曙光学校2019-2020学年高二下学期第一次月考数学试题