Then cosine theorem is no longer a pure problem from elementary geometry.
于是余弦定理从此不再是一个纯粹的初等几何问题。
By discussing the filter product cosine operator function and the spectrum of it 's generator, the spectral mapping theorem for the locally equicontinuous cosine operator function is established.
通过对滤子积余弦算子函数及生成元谱性质的讨论，建立了局部等度连续余弦算子函数的谱映象定理。
In this paper, we generalized the Pythagorean Theorem and Cosine law from the new point and we have got a few the simple proper USES of the result that we have made.
本文给出了两个定理：从一个新的角度推广了勾股定理与余弦定理：另外我们还给出了这两个定理的若干简单应用。
In this paper, we generalized the Pythagorean Theorem and Cosine law from the new point and we have got a few the simple proper USES of the result that we have made.
本文给出了两个定理：从一个新的角度推广了勾股定理与余弦定理：另外我们还给出了这两个定理的若干简单应用。
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