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三角函数是高中数学的重点内容,也是高考的热点问题.那么,三角函数变换有哪几种类型?解题中常见的方法有哪些?本文就该话题进行简单的探讨,望能有助于三角函数变化教学实践.一、三角函数变化问题例析1.“角”的变换解决三角函数的问题,角的转化是常见类型,虽然常见,但却包罗万象,有倍角、半角、和角、差角、凑角、余角、补角等等,通过角的变换这一纽带,转变函数的运算符号和名称,或是次数,促使问
Trigonometric function is the focus of high school mathematics, but also the hot topic of the entrance exam.So, the trigonometric function transformation which types? The common problem solving methods which? This article on the topic of a simple discussion, hope to contribute to the triangle Functional changes in teaching practice First, the triangular function change problem analysis 1. “Angle ” transformation to solve the problem of trigonometric functions, corner transformation is a common type, though common, but all-encompassing, with multiples, The difference angle, hash angle, extra angle, supplementary angle, etc., through the corner of the transformation of this bond, the conversion function of the operation symbols and names, or the number of, prompting questions