The wave shown in red in Fig. E1.2 is given by u = 5cos2pt=8. Of the following four equations:
(1) υ = 5cos(2πt / 8 - π / 4),
(2) υ = 5cos(2πt / 8 + π / 4),
(3) υ = -5cos(2πt=8 / π / 4),
(4) Ï… = 5sin 2Ï€t / 8,
(a) which equation applies to the green wave?
(b) which equation applies to the blue wave?

Transcribed Image Text:

o (volts) 123 45 6 7/8 9 10 11 13134 -5 Figure E1.2