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Given AC outlet voltage is well approximated by a sinusoid f(t) = 110 sin(120 +) and knowledge thato= . What is the first tim

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) = о /120тт€+в) - (+) = 110 cm (12от t =). s 10 05 (12опе) і ) = 0 = 110 с (12ото) cos ( 12 т. ) = 0 12сп. = Co 12 п. = 7,

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