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单词 trigonometric function
释义 trigonometric functionn.Mathematics(名词)【数学】trigonometric functionIn a right triangle, the three main trigonometric functions aresine θ = opposite / hypotenusecosine θ = adjacent / hypotenusetangent θ = opposite / adjacent.
  1. A function of an angle expressed as the ratio of two of the sides of a right triangle that contains that angle; the sine, cosine, tangent, cotangent, secant, and cosecant. Also called circular function 三角函数:角的函数,用直角三角形夹该角的两条边的比表示;正弦、余弦、正切、余切、正割、余割 也作 circular function
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