A.y=Acos[2πv(t+to)+π/2] B.y=Acos[2πv(t-to)+π/2] C.y=Acos[2πv(t-to)-π/2] D.y=Acos[2πv(t+to)-π/2]

A.y=Acos[2πv(t+to)+π/2] B.y=Acos[2πv(t-to)+π/2] C.y=Acos[2πv(t-to)-π/2] D.y=Acos[2πv(t+to)-π/2]

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A.226~230kW B.220~226kW C.208~214kW D.200~207kW

A.226~230kW B.220~226kW C.208~214kW D.200~207kW

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