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用解析法解决几何问题已有不少文章进行了探讨。为沟通数学不同部分的知识和方法,提高综合运用知识的能力,对于几何在解决代数、三角问题上的作用,也应当予以重视.本文拟就单位圆在证明三角不等式中的应用作一些讨论.
The use of analytical methods to solve geometric problems has been discussed in many articles. In order to communicate the knowledge and methods of different parts of mathematics and improve the ability to apply knowledge comprehensively, we should also pay attention to the role of geometry in solving algebraic and triangular problems. This paper intends to make some discussion on the application of unit circle in the proof of triangle inequality.