Calculate the phase angle of the sinusoidal waveform z(t)=78sin(456Ï – McqOptions

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1.	Calculate the phase angle of the sinusoidal waveform z(t)=78sin(456Ï€t+2Ï€Ã·78).
A.	Ï€Ã·39
B.	2Ï€Ã·5
C.	Ï€Ã·74
D.	2Ï€Ã·4
Answer» B. 2Ï€Ã·5

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