| 单词 | cosine |
| 释义 | cosine UK ['kəʊ.saɪn] US ['koʊ-] (written abbreviation cos) specialized noun countable ■(in a triangle that has one angle of 90°) the ratio of the length of the side next to an angle less than 90°, divided by the length of the hypotenuse (= the side opposite the 90° angle) 余弦 Compare sine ; tangent |
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