三角函数是数学中常见的一类关于角度的函数。它在研究三角形和圆等几何形状的性质时有重要作用，也是研究周期性现象的基础数学工具。本文将对一些关于三角函数在解决实际问题中的应用做简单的讨论。%The trigonometric function is a common function about the angle in mathematics, which plays an important role when studying the properties of geometric shapes such as triangles and circles, and is also a basic mathematical tool of studying periodic phenomena. This paper will discuss the application of trigonometric functions in solving practical problems.
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