... 角的余弦定理 cosine theorem of angle 边的余弦定理 cosine law for sides ; cosine theorem of sides 正弦-余弦定理 sine-cosine law ...
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向量；统计；概率；映射；变换；正弦与余弦定理；函数。
Vector, Statistics, Probability, Mapping, Transformation, Sine and Cosine Law, Functions.
正、余弦定理的几点应用摘要正弦定理和余弦定理是三角形边角关系及三角函数种最常见、最主要的两个定理。
Sine and Cosine is the triangular relationship between the corners and trigonometric functions of the most common, the two most important theorems.
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