A=1,b=1 3π/5-π/10=3T/4 T=2π/3 ω=3 x=π/10 y有最大值 3*π/10+φ=π/2 φ=π/5
f(x)=sin(3x+π/5)+1
补充：|φ|π
已知f(x)=Asin(ωx+φ)+b,(|φ|
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