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在北师大版高中数学必修四第一章第8节《函数f(x)=Asin(ωx+φ)的图像与性质》中有这样一种题型:由函数f(x)=Asin(ωx+φ)+B(A>0,ω>0)的图像求解析式.对于这种题型,我们在教学中往往采用以下解法求解:
There is such a type of question in the image and properties of the function f (x) = Asin (ωx + φ) ωx + φ) + B (A> 0, ω> 0) .For this type of question, we tend to use the following solution in teaching: