由三角函数的定义就可以发现,三角函数与坐标法之间有着紧密的联系.因此,面对一个三角问题时,我们不妨伸出解析的思维视角,不但能够沟通知识之间的横向联系,或许还能够发现一个别开生面的解法.本文把自己的一些心得做了一些归纳,写在下面,供老师和同学们参考指正.一、借助单位圆 From the definition of trigonometric function, we can find that there is a close relationship between trigonometric function and coordinate method.Therefore, in the face of a triangular problem, we may extend the perspective of analytical thinking, not only to communicate the horizontal relationship between knowledge, perhaps But also to find an exceptionally positive solution.This article put some of their own experiences do some summaries, written below, for teachers and students reference correction .A, with the unit circle