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三角函数在历年的高考试题中占有重要地位,需要熟练掌握三角函数内部知识的综合及三角函数与向量的综合。需要熟练掌握三角形中的基本定理及其变形,以及正、余弦定理与三角函数的结合问题。
Trigonometric functions occupy an important position in the college entrance examination questions over the years, need to master the synthesis of the internal knowledge of trigonometric functions and the synthesis of trigonometric functions and vectors. Need to master the basic theorem in triangle and its deformation, as well as the combination of positive and cosine theorem and trigonometric function.