发布网友 发布时间:2024-10-24 16:47
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热心网友 时间:2024-11-07 01:11
x∈[-π/6,2π/3]时,函数fx=Asin(wx+Ψ)(A>0,w>0,-π/2<Ψ<π/2)A=1, 1/4T=2π/3-π/6=π/2,T=2π∴2π/w=2π,w=1f(x)=sin(x+φ)当x=π/6时,f(x)取得最大值∴π/6+φ=2kπ+π/2,k∈Z∵,-π/2<Ψ<π/2∴φ=π/3