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专题一同角三角函数的基本关系式技巧复习提示同角三角函数的基本关系式是整个三角函数一章的重点内容之一,它揭示了同角三角函数之间的内在联系,主要运用于三角函数的求值和恒等变形中各函数间的相互转化.运用同角关系式进行求值、化简和证明具有较大的灵活性,除了深刻理解
The basic relational technique of the special isomorphic trigonometric function review tips The basic relational formula of the isogonal trigonometric function is one of the key contents of the entire trigonometric function chapter. It reveals the intrinsic relationship between the isogonal trigonometric functions and is mainly applied to triangles. The evaluation of functions and mutual transformation between functions in the isomorphic transformation. The use of homoclinic relations for evaluation, simplification, and proof has greater flexibility, in addition to profound understanding