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Ⅳ三角方程教学大纲在代数部分指出“……到了高中三年级,关于方程同解的知识才能达到系统化.”但是查一查高三代数内容似乎没有恰当机会使之系统化,而在三角部分大纲又规定“学习三角方程的时候,……(1)要求出方程的一切解;(2)在方程变形的时候不应当忽视增根和遗根的可能性的问题.”因此我建议把这两个要求结合起来,放在三角方程一节中去实现.为此,系统的复习与在复习的基础上发展一步就很有必要.
The IV syllabus syllabus pointed out in the algebraic part that “...to the third grade of high school, the knowledge of the equations and solutions can be systematic.” However, it seems that there is no proper opportunity to systematize the contents of the third-generation algebra. It also states that “When studying the trigonometric equations, ... (1) requires that all equations be solved; (2) The question of the possibility of rooting and rooting should not be ignored when the equations are deformed.” So I propose to The requirements are combined and implemented in the triangular equation section. To this end, it is necessary to review the system and develop a step based on the review.