Calculate the phase angle of the sinusoidal waveform x(t)=20sin(9πt+� – McqOptions

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1.	Calculate the phase angle of the sinusoidal waveform x(t)=20sin(9πt+π÷7).
A.	π÷9
B.	π÷5
C.	π÷7
D.	π÷4
Answer» D.

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