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由于三角函数这部分知识比较抽象,同学们解题时常因理解上的不足造成各式各样的错误.本文试针对一些误区进行剖析,旨在加深对三角函数知识的理解,提高同学们的辨别能力.误区1:在几个单调区间并起来的合区间上有单
Because the knowledge of this part of the trigonometric function is relatively abstract, students often solve various problems due to lack of understanding. This paper attempts to analyze some misunderstandings to deepen the understanding of trigonometric functions and improve the discrimination of students. Competence. Misunderstanding 1: There are singles in the combined range of several monotonous intervals.