已知
、
分别是方程
的两根,且
是第二象限角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a0059e1f8eea0187a8b76b3fd3fe8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189008e1bb59d9ca0bce7d21da0cc62a.png)
更新时间:2021-01-27 11:48:44
|
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解答题-问答题
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适中
(0.65)
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解题方法
【推荐1】已知
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(1)求
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b4cab645c97f6d1710f803ef6a8436.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f372fe4ef0d08a9c4d2a7139a664d52.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ca81c93e94a4b0d7d318c866cd749f.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】已知
,且
,求
(1)
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(2)
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0917d846965359153058d56498f076bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9f1f872a4208a7f21dedcc50127619.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d469f6556c10a448446ef4ef59065bc4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
您最近一年使用:0次
解答题-问答题
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适中
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【推荐1】如图,点
是单位圆
上的两点,点
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与
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按逆时针方向旋转
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/185a4a51-2d6b-4946-b147-0e2561fd25ab.png?resizew=166)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f57bf36e92fae170161eca953aa767.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65af1d6b6b831ebbdc36dda5f304a3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/185a4a51-2d6b-4946-b147-0e2561fd25ab.png?resizew=166)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f464fcfaf238792db9de1e27b0ed7b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c40c57bc2ce30220e9a24fa2777d23a.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2509405000ecf3471f622eb27bdb4815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2509405000ecf3471f622eb27bdb4815.png)
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适中
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【推荐2】已知函数
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfdf344861e717d5659ac7f2b219d1a.png)
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您最近一年使用:0次