函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},

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函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},(

函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},
函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},

函数f(x)=Asin(Wx+%){A>0W>0|%|<π/2},
(1)看图可知A=2
最小正周期T=π
∴w=2π/π=2
x=π/3时,f(x)=2
∴sin(2*π/3+φ)=1
∴2π/3+φ=π/2+2kπ,k是整数
∵|φ|