函数f(x)=sin(wx+φ)(w>0,|φ|
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函数f(x)=sin(wx+φ)(w>0,|φ|函数f(x)=sin(wx+φ)(w>0,|φ|函数f(x)=sin(wx+φ)(w>0,|φ|函数f(x)=sin(wx+φ)(w>0,|φ|0,|φ
函数f(x)=sin(wx+φ)(w>0,|φ|
函数f(x)=sin(wx+φ)(w>0,|φ|
函数f(x)=sin(wx+φ)(w>0,|φ|
函数f(x)=sin(wx+φ)(w>0,|φ|0,|φ|φ=2π/3
f(x)=sin(2x-2π/3+φ)=-sin2x==>φ=-π/3
∵|φ|x=kπ+5π/12
2x-π/3=2kπ-π/2==>x=kπ-π/12
显然,选择B
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