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Consider the function F (s)= 5/s(s^2+3s+2), the initial value of f(t) is:(a) 5(b) 5/2(c) 5/3(d) 0This question was posed to me by my school principal while I was bunking the class.This intriguing question originated from State Variables and Linear Discrete-Time Systems topic in division State Variable Analysis and Design of Control Systems

Answer» CORRECT CHOICE is (d) 0

To explain: For INITIAL value theorem in which time is at t =0 and for the frequency which is the inverse of time, the value of s is replaced with INFINITY and HENCE the value obtained is 0.


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