Calculate the phase angle of the sinusoidal waveform w(t)=.45sin(87πt – McqOptions

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1.	Calculate the phase angle of the sinusoidal waveform w(t)=.45sin(87πt+8π÷787).
A.	2π÷39
B.	8π÷787
C.	5π÷74
D.	42π÷4
Answer» C.

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