名词
中文翻译：余弦函数同义词
同义词：
['cosine function', 'cosine', 'cosh']
例句：
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1. The cosh of π is approximately equal to 1.
π的余弦约等于1。
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2. The cosh of a number is the reciprocal of its square root.
一个数的余弦是它的平方根的倒数。
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3. In mathematics, the cosh function is used to model the shape of an object when it iscompressed or deformed.
在数学中，余弦函数被用来模拟物体在压缩或变形时的形状。