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单词 余弦
释义 DEFINITIVE EXAMPLES 权威例句〔arc cosine〕The inverse function of the cosine of an angle.反余弦:角度余弦的反函数美国传统〔cosine〕In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.余弦:直角三角形锐角边的边长与叙边的比美国传统〔trigonometry〕Trigonometry concerns the functions of angles, such as sine, cosine, and tangent.三角学研究的是角的函数,例如正弦、余弦和正切。剑桥高阶Trigonometry concerns the functions of angles, such as sine, cosine and tangent.三角学是关于角的功能的学科,例如正弦、余弦和正切。剑桥国际
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