根据所学知识,请将下表内容补充完整.
锐角三角函数 | 30° | 45° | 60° |
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更新时间:2022-01-22 18:53:41
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【知识点】 求特殊角的三角函数值解读
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【推荐1】如图,矩形
的顶点
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