2024高一·上海·专题练习
1 . 若
,证明:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dda6feb152b17350c2d83b67582c033.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320af9f462428683ddb538bd892b4a7.png)
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2024高一·上海·专题练习
2 . 若
,证明:
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b495a7a39cd372ac8aa24132c4459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34cde6e6354d078b3e9a00f8ac624963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea0a48aeeafc595a6ddd9b9d23953fc.png)
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3 . (1)已知
,求:满足条件的角
的取值范围;
(2)已知
,求:满足条件的角
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6380ce78a2bea9f71a99eb39eca54fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd90fb42bc7a9e4e651d5b65e92c5b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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名校
解题方法
4 . 如图,在平面直角坐标系中.锐角
、
的终边分别与单位圆交于
、
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/158c94e0-7054-4c1d-a8c3-7242a7e8bfbe.png?resizew=164)
(1)如果
,
点的横坐标为
,求
;
(2)若
,将角
的终边按逆时针方向旋转
后与单位圆交于点
,求角
的大小及四边形
的周长;
(3)若角
的终边与单位圆交于
点,设角
、
、
的正弦线分别为
、
、
,试探索线段
、
、
能否构成一个三角形?
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/158c94e0-7054-4c1d-a8c3-7242a7e8bfbe.png?resizew=164)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541855d25afe0cfb489eeaa157daf59d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63d1200ef5de2c40f2022af10a87b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d521f8d021b20757d7a68107fcef1d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc790cfaa59a808c25a7edb95dc29fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c550484116296268d293158d9ff9e630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db16c2860a8881cdfcaec890f2948304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607543bb9f55b8a141ed2d6cf0e1a20b.png)
(3)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/b8dc4c63a548b91061528aa11058de75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279563c3c055777ce1aa369a2ef54aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279563c3c055777ce1aa369a2ef54aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
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5 . 通过正弦函数线,推导函数
的图像.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37fa9cf15c55479320e5b3f02445ed3.png)
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6 . 分别在四个象限中画出象限角的余弦线,并作函数
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b1a2abe64979c77ded71c7d112786f.png)
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7 . 分别在四个象限中画出象限角的正弦线,并作函数
的图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37fa9cf15c55479320e5b3f02445ed3.png)
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8 . 利用单位圆中三角函数线.证明:当
时,
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65b6c42393fae47c51101713167ff71.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783a94fe87b6aa7ca9258d5fbbcc3cbd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dda6feb152b17350c2d83b67582c033.png)
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20-21高一·上海·假期作业
9 . 作出下列各角的正弦线、余弦线和正切线
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1ceea47cd75291ef4d03a8e1f404ca.png)
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