| 词汇 | cosine |
| 释义 | cosine noun [ C ] mathematics specialized uk/ˈkəʊ.saɪn/ us/ˈkoʊ.saɪn/ (written abbreviation cos) 余弦 (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) Compare: sine tangent (TRIANGLE) |
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