在平面直角坐标系
中,角
的顶点为坐标原点,始边与
轴的非负半轴重合,终边交单位圆
于点
,且
,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e990dfbda9f362d78eb07c11b3dda95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76308684e31fdc1d7b607dca6e465ac.png)
2020高三·全国·专题练习 查看更多[2]
更新时间:2020-08-18 09:42:41
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适中
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解题方法
【推荐1】已知角
终边上一点
则
的值为___________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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解题方法
【推荐2】角
的终边经过点
,且
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfdade66272ca9272dfe0a5a6566d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969b106918cf44777d177a0538da8cb3.png)
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您最近一年使用:0次
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适中
(0.65)
解题方法
【推荐1】已知
,
.若
可表示成
的形式(
为正整数),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8255d540afdd24f608ab7ec231cff469.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fc40ef019eaa9eb6b29afa510eb0ba5.png)
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【推荐2】已知
是关于x的方程
的两个根
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9f7819b093bf686bcf307d8c79625c2.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0436ff4c817f257ea0b8a9e25854860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3281f1f2727b0c180284a40d2d3836d.png)
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您最近一年使用:0次
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【推荐1】已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a40bc0f097c2e1125076bf2acbec04.png)
__________ .
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您最近一年使用:0次
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【推荐2】①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7509075d12f4575b771c9ef42bdc75.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d350c4f26443723bc8fda884f6988a.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d9ab21bccb80738f789f2e742d0008.png)
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5249c51ed3ddec27ca972bac4369a893.png)
其中正确命题的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7509075d12f4575b771c9ef42bdc75.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d350c4f26443723bc8fda884f6988a.png)
③
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④
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您最近一年使用:0次
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【推荐1】已知
的内角
,
,
的对边分别为
,
,
,且
,则
的最小值为________ .
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