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Contoh :Penyelesaian :v(t)DayaCarilah Daya rata-rata pada tahanan 1Ω olehsinyal tegangan dengan periode 2π diberikan oleh :periodikKoefisienrataderet−1 1v( t)= cost− sin 2t+ cos3t3 2denganrataFourierPavperiode=:a12π12π∫0T= 1,=a32π=2( v(t)) dtDengan teori Parseval didapatkan :12,b2= −13P av=12⎛⎜1⎝2⎛ + ⎜ −⎝13⎞⎟⎠2+⎛⎜⎝12⎞⎟⎠2⎞⎟⎠=0,68WMatematika Teknik II( Ir. I Nyoman Setiawan, MT)5

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