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对于三角方程,由于采用不同的解法,往往有不同形式的答案。在三角方程的教学中,学生对不同形式的答案的正确性持怀疑态度,有必要向学生介绍统一这些不同形式解的方法。七九年三月版教参中介绍了取有限个值说明解的统一的方法,学生并不满足。本文介绍一种三角方程解的不同形式的统一方法,
For triangular equations, there are often different forms of answers due to different solutions. In the teaching of trigonometric equations, students are skeptical about the correctness of different forms of answers. It is necessary to introduce students to the methods of unifying these different forms of solutions. The March 1979 edition of the teaching reference introduced a unified method of taking a finite number of explanations of the solution. The students were not satisfied. This article describes a unified approach to the different forms of solutions to the trigonometric equations.