Discrete Mathematics MCQ Set 1 1. Time domain function of s ⁄ a2 + s2 is given by a) Cos(at) b) Sin(at) c) Cos(at)Sin(at) d) None of the above AnswerAnswer: a [Reason:] L[Cos(at)] = s ⁄ a2 + s2 L-1 [s ⁄ a2 + s2 ] = Cos(at). 2. Inverse Laplace transform of 1/(s+1)(s-1)(s+2) is…