英语词汇“addition formula”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

addition formula

Mathematics

noun

An equation in which one quantity is expressed in terms of a sum of other quantities; specifically any of several standard formulae which express a trigonometrical function of a sum or a difference of angles as a sum or difference of products of similar functions of the individual angles.

An example of a trigonometrical addition formula is sin (A + B) = sin A cos B + cos A sin B..

Origin

Late 19th century; earliest use found in Proceedings of the Royal Society of London.

单词	addition formula
释义	addition formula Mathematics noun An equation in which one quantity is expressed in terms of a sum of other quantities; specifically any of several standard formulae which express a trigonometrical function of a sum or a difference of angles as a sum or difference of products of similar functions of the individual angles. An example of a trigonometrical addition formula is sin (A + B) = sin A cos B + cos A sin B.. Origin Late 19th century; earliest use found in Proceedings of the Royal Society of London.
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