1 Find F(s) if f(t) = (a)(t-3);(b)4t u(t-3); (c)4 cos to(t-3). 2 Obtain partial-fraction expansions for each of the following rational functions, and find the corresponding time functions:
In this chapter we shall show how the phasor methods developed to analyze circuits operating under sinusoidal steady- state conditions can be applied to the study of three-phase ac circuits