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单词	字典	翻译
cosine	查看　cosine　在百度字典中的解释	百度英翻中〔查看〕
cosine	查看　cosine　在Google字典中的解释	Google英翻中〔查看〕
cosine	查看　cosine　在Yahoo字典中的解释	Yahoo英翻中〔查看〕

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英文字典中文字典相关资料:

Sine and cosine - Wikipedia
The sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that of the hypotenuse
Sine, Cosine, Tangent, explained and with Examples and practice . . .
This page explains the sine, cosine, tangent ratio, gives on an overview of their range of values and provides many practice problems on identifying the sides that are opposite and adjacent to a given angle

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