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一、三角函数的重点是“三角函数的图象和性质”1.从考试大纲的变化看“三角函数的图象和性质”1998年4月21日,国家教育部专门调整了高中数学的部分教学内容,其中的调整意见第(7)条为;“对三角函数中的和差化积、积化和差的8个公式,不要求记忆.”最新的数学课程标准延续了这一意见:“能运用相关的公式进行简单的恒等变换(包括引导导出积化和差、和差化积、半角公式,但不要求记忆)”
First, the focus of the trigonometric function is “the image and nature of the trigonometric function.” 1. From the examination outline changes “image and nature of the trigonometric function ” April 21, 1998, the Ministry of Education specifically adjusted Part 7 of the teaching content of high school mathematics, in which the adjustment of opinion Article (7) is; “For the trigonometric functions and differential product, the difference between the 8 formulas, does not require memory.” The latest math curriculum standards Continuation of this opinion: “Can use the formula to carry out a simple equality transformation (including the guide export and accumulation of difference, and the difference product, half-angle formula, but does not require memory) ”