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词汇 sine
释义

sine

noun
/saɪn/
/saɪn/
(abbreviation sin)
(mathematics数学)
  1. the ratio of the length of the side opposite one of the angles in a right-angled triangle that are less than 90° to the length of the longest side正弦 compare cosine, tangentTopics Maths and measurementc2
    词源late 16th cent.: from Latin sinus ‘curve’, used in medieval Latin as a translation of Arabic jayb ‘pocket, sine’.
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