三角函数是高中数学中一个非常重要的内容,而三角恒等变换是三角函数的一个重要组成部分,它对于求解三角函数问题有着非常重要的帮助。因此本文就对三角恒等变换的常见技巧及其应用进行了一定的分析。 Trigonometric function is a very important part in high school mathematics. Trigonometric identity transformation is an important part of trigonometric function. It is very important for solving trigonometric functions. Therefore, this paper analyzes the common tricks and applications of triangular identity transformation.