解题方法
1 . 已知角
的顶点在坐标原点,始边与
轴正半轴重合,终边经过点
.
(1)求
,
的值;
(2)若
,且
,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed51623f4856b7f8166db54783b9491.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2894710ad17e08f1b98760e66bf02c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a335abba93abcbd8754d364fc5311de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8114e78ac5798c981a09a8d282875f99.png)
您最近一年使用:0次
2023-02-21更新
|
295次组卷
|
2卷引用:海南省2022-2023学年高一下学期学业水平诊断(一)数学试题
名校
解题方法
2 . 已知函数
部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/2022/2/28/2926022356672512/2938027994783744/STEM/0e7442a7f0d44eb2a89761653b441bd2.png?resizew=138)
(1)求函数
的解析式;
(2)若
,且
为锐角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b89c97ef9c26a8f6f1eead43c67853.png)
![](https://img.xkw.com/dksih/QBM/2022/2/28/2926022356672512/2938027994783744/STEM/0e7442a7f0d44eb2a89761653b441bd2.png?resizew=138)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ce09447af6ddfeae3b924a802b770f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
您最近一年使用:0次
2022-03-17更新
|
1201次组卷
|
4卷引用:安徽省淮北一中、安师大附中、铜陵一中、中科大附中四校2021-2022学年高一下学期学业水平调研数学试题
名校
解题方法
3 . 若
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba80eb5253bed4d4834ebbf39980424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2081f4670de5a3d84ae96b519eade5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b30ef3b0b5e851dc721fedec7335a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
您最近一年使用:0次
2022-03-17更新
|
1746次组卷
|
5卷引用:安徽省淮北一中、安师大附中、铜陵一中、中科大附中四校2021-2022学年高一下学期学业水平调研数学试题
安徽省淮北一中、安师大附中、铜陵一中、中科大附中四校2021-2022学年高一下学期学业水平调研数学试题(已下线)第03练 三角恒等变换-2022年【暑假分层作业】高一数学(苏教版2019必修第二册)(已下线)专题09 三角恒等变换、函数y=Asin(ωx+φ)及三角函数应用1--期末复习重难培优与单元检测(人教A版2019)(已下线)第04讲 简单的三角恒等变换 (精讲+精练)-3专题04C三角恒等变换
解题方法
4 . 已知
,a∈
.
(1)求sin2a;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a9d1b8269a6ff06ee8a1f45cfe72a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc299018cae8bc47faa38c156b355ec6.png)
(1)求sin2a;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fc75c1794289a311fb6055877cee4f.png)
您最近一年使用:0次
5 . 求值
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691a3f00249817f938a77b9a360c4587.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次