A cosine wave voltage signal has a 10V RMS value and 60Hz frequency. Also at time, t=0, the value of the voltage signal is equal to its RMS value. Which of the following is the correct mathematical representation of the voltage signal?

A cosine wave voltage signal has a 10V RMS value and 60Hz frequency. A

1.	A cosine wave voltage signal has a 10V RMS value and 60Hz frequency. Also at time, t=0, the value of the voltage signal is equal to its RMS value. Which of the following is the correct mathematical representation of the voltage signal?
A.	10 cos(60t)
B.	10 cos (120 t)
C.	14.14 cos(60t + /4)
D.	14.14 cos(120 t + /4)
Answer» E.