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一、教学内容及其解析【内容】了解A、棕、渍对函数y=Asin(ωx+φ)图象的影响,掌握将正弦函数y=sinx的图象变换为y=Asin(ωx+φ)、y=Asinx、y=sin棕x图象的方法(其中A>0、棕>0).【解析】函数y=Asin(ωx+φ)的图象是人教A版必修四第一章第五节内容,它是刻画物理学中简谐振动和交流电的电压电流变化的数学模型,应用非常广泛。由正弦曲线得到函数y=Asin(ωx+φ)的图象为学生提供一种函数
First, the teaching content and analysis 【Content】 Understanding of A, brown, stain on the function y = Asin (ωx + φ) the impact of the image, to master the sine function y = sinx image into y = Asin (ωx + φ ), Y = Asinx, y = sin Brown x image method (where A> 0, Brown> 0) [Analysis] function y = Asin (ωx + φ) Chapter V fifth chapter, it is the physical characterization of harmonic vibration and AC voltage and current mathematical model, the application is very extensive. The image obtained by the sinusoidal function y = Asin (ωx + φ) provides the student with a function