函数y=f1(x)=Asin(wx+φ)(A>0,

函数y=f1(x)=Asin(wx+φ)(A>0,w>0,φ的绝对值

1个回答

由图像可以看出:A=2,周期为2（π/3+π/6)=π T=2π/w ∴w=2
当x=½(π/3-π/6)=π/12时最大值为2 ∴sin(2·π/12＋φ﹚=1∴π/6＋φ=π/2＋2kπ,k∈Z
∴φ=π/3 ∴f(x)=2sin(2x+π/3)

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