天气预报15天查询> 其他> 数学概念问题关于零角的概念

数学概念问题关于零角的概念

更新时间: 2020-07-02 00:00:00     

关于零角的概念如下:

1、零角始边和终边重合,但始边和终边重合的角并不都是零角;

2、角是射线旋转出的图形,射线逆时针旋转,得出的角叫正角,顺时针旋转是负角,射线未旋转的角是0度,就叫零角;

3、零角始边和终边重合,但始边和终边重合的角并不都是零角,例如360度,负360度。

关键词: 数学 概念 问题 关于

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-2196296/ | 耗时:0.5155 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2196296 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2196296 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2196296 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1107833,1086095,1118543,1108828,1091757,1091625,999216,1096473,1120805,1092712,1112754,1073568,1049046,1095137,1114957,1116191,1076095,1117450,1108640,1109991,1081687,1121696,1092113,1113417,1110870,1082954,1077100,1074880,1102156,1110031) ORDER BY field (ArticleID,1107833,1086095,1118543,1108828,1091757,1091625,999216,1096473,1120805,1092712,1112754,1073568,1049046,1095137,1114957,1116191,1076095,1117450,1108640,1109991,1081687,1121696,1092113,1113417,1110870,1082954,1077100,1074880,1102156,1110031)