名校
解题方法
1 . 如图,在平面坐标系
中,第二象限角
的终边与单位圆交于点
,且点
的纵坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0cec23df-f7f5-44ab-8f44-f7810410fb46.png?resizew=154)
(1)求
,
,
的值;
(2)先化简再求值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0cec23df-f7f5-44ab-8f44-f7810410fb46.png?resizew=154)
(1)求
![](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/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)先化简再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2d28bfcd18f4d4d871440fc31e7e34.png)
您最近一年使用:0次
2020-06-10更新
|
549次组卷
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8卷引用:安徽省滁州市明光中学2020-2021学年高一下学期开学考试数学试题
名校
解题方法
2 . 已知角α的终边在第三象限,与单位圆的交点为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000ea4579224c0887f3294d976e60d23.png)
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000ea4579224c0887f3294d976e60d23.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8112f9185c7d48b015d9cd0525616b31.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aace861da7214ea2cd2ee9d401e07eea.png)
您最近一年使用:0次
名校
3 . 在平面直角坐标系
中,以
为始边作角
与
(
),它们的终边与单位圆分别相交于点
,已知点
.
![](https://img.xkw.com/dksih/QBM/2020/1/30/2388072192073728/2388181329297408/STEM/4d17f09b8f9f4170bf609986bdd41e8a.png?resizew=183)
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa948cb66784cd5839721537ae85542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689f597676379e965d777c58872e8e76.png)
![](https://img.xkw.com/dksih/QBM/2020/1/30/2388072192073728/2388181329297408/STEM/4d17f09b8f9f4170bf609986bdd41e8a.png?resizew=183)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653e1e6f59a7a6ee662267f900851389.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2710b09aff9f5b66513afaacf7bb230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fe57d4fbae536de2e641d9d349fcf1.png)
您最近一年使用:0次
2020-01-30更新
|
445次组卷
|
3卷引用:2020届安徽省六安市第一中学高三下学期3月月考数学(文)试题
2020届安徽省六安市第一中学高三下学期3月月考数学(文)试题江苏省无锡市2019-2020学年高一上学期期末数学试题(已下线)卷09-备战2020年新高考数学自学检测黄金10卷-《2020年新高考政策解读与配套资源》