若f(x)=sin(π/2x+α)且f(2004)=1.则f(2008)=
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![若f(x)=sin(π/2x+α)且f(2004)=1.则f(2008)=](/uploads/image/z/12628760-32-0.jpg?t=%E8%8B%A5f%EF%BC%88x%EF%BC%89%3Dsin%EF%BC%88%CF%80%2F2x%2B%CE%B1%EF%BC%89%E4%B8%94f%EF%BC%882004%EF%BC%89%3D1.%E5%88%99f%EF%BC%882008%EF%BC%89%3D)
若f(x)=sin(π/2x+α)且f(2004)=1.则f(2008)=
若f(x)=sin(π/2x+α)且f(2004)=1.则f(2008)=
若f(x)=sin(π/2x+α)且f(2004)=1.则f(2008)=
f(2004)=sin(π/2*2004+a)=1
即sina=1
f(2008)=sin(π/2*2008+a)=sina=1
sinx 的周期是2π.
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