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

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

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