Asked by Stephan pultree
                 Use compound angle formulae to express Second harmonic i2= sin2t and the the third harmonic i3=sin3t in terms of the first harmonic sint
            
            
        Answers
                    Answered by
            Steve
            
    sin2t = 2 sint cost
sin3t = sint cos2t + cost sin2t
(cos2t = 1 - 2sin^2 t)
    
sin3t = sint cos2t + cost sin2t
(cos2t = 1 - 2sin^2 t)
                    Answered by
            Stephan pultree
            
    Thanks :)
    
                    Answered by
            Stephan pultree
            
    Whats the workings out to get to these answers ? Jw ta
    
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