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解题方法
1 . 已知O为坐标原点,点P的初始位置坐标为
,线段
绕点O顺时针转动
后,点P所在位置的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c64a66fbe72a61b249ae4ca4d91b7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a4c9b697e3df2b5469b71d3b5e47a2.png)
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2 . 已知角
的顶点在坐标原点,始边在
轴的正半轴上,终边与单位圆交于第二象限的点
,且点
的纵坐标为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb33fae042d19db3a1cd14dc34007c89.png)
______
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb33fae042d19db3a1cd14dc34007c89.png)
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2022-10-27更新
|
338次组卷
|
3卷引用:江苏省南京市第一中学2022-2023学年高三上学期10月质量检测数学试题
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3 . 若点
在单位圆上从点
出发,沿逆时针方向做匀速圆周运动,每
运动一周,则
关于时间
的函数解析式是________________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17375498fcd71a15ba331cdbab76fc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290092e2e5ec15af1f6f294fdd208603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481d3af5d7babbdfd6629e2af82f623a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecd76012d1b9c5e9fec6221e6e489c2.png)
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解题方法
4 . 如图,在单位圆中
,
为等边三角形,
、
分别在第一、二象限内,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306b658ad084eca0b22b282886760dbc.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eef20269a8559eee8165db306c76cb5.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1aaee723d00ea1120997be4e4951f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306b658ad084eca0b22b282886760dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eef20269a8559eee8165db306c76cb5.png)
![](https://img.xkw.com/dksih/QBM/2021/3/4/2670589822263296/2670835372302336/STEM/6f4c6c2773a84572b1f27faa5416bce7.png?resizew=174)
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