InterviewSolution
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                                    If f(θ)=sin2θ+sin2(θ+2π3)+sin2(θ+4π3),thenf(π15) | 
                            
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Answer»  If f(θ)=sin2θ+sin2(θ+2π3)+sin2(θ+4π3),thenf(π15)  | 
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