数形结合在三角函数中的应用在中学数学中，三角函数是比较重要的一部分，结构比较复杂，并且中学生对其的理解和学习比较困难．本文通过对数形结合在函数的定义、公式、求解这三部分中的应用进行归纳总结，然后对三角函数解题中所应用数形结合的例题分析、讲解，从而帮助中学生更好的理解和掌握数形结合的思想方法．
关健词 数形结合 三角函数 三角函数的定义 三角函数的公式 解题技巧
The Number of Combinations is Applied in Trigonometric Function
Abstract In the high school mathematics,the trigonometric functions is an important chapter that the content is complex.It is a trouble for students to understand and study.We generalization and summarization,through the symbolic-graphic combination apply in definition,formnla and solve.Then we analysis on example that apply in definition formula of trigonometric function and solve problem.So we can help the students to understand and grasp the idea of symbolic-graphic combination.
Keywords symbolic-graphic combination trigonometric function concept fonmula solve problems
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