三角函数是新课改下高考重点考查内容之一,侧重于考查学生运用基本公式、基本性质以及运算等方面的能力,以中等难度为主.处理时要树立目标意识、等价转换意识,以此缩短思维长度,简化、优化运算,提升分析、解决问题的能力.一、典型例题透析1典型题组,培养思维灵活性【例1】(1)若函数f The trigonometric function is one of the major contents of the college entrance examination under the new curriculum reform. It focuses on the ability of students to use basic formulas, basic properties, calculations, etc. It is mainly based on medium difficulty. It should establish awareness of target awareness and equivalent conversion when dealing with This shortens the length of thinking, simplifies, optimizes calculations, and enhances the ability to analyze and solve problems. First, a typical example of Dialysis 1 typical questions group, training thinking flexibility [Example 1] (1) If the function f