The unit step response for a relaxed system is c(t) = 1 – e-3t; t ≥ 0; What will be its transfer function?
1
\(\frac{3}{{s\left( {s + 3} \right)}}\)
2
\(\frac{3}{{\left( {s + 3} \right)}}\)
3
\(\frac{1}{{s\left( {s + 3} \right)}}\)
4
\(\frac{1}{{\left( {s + 3} \right)}}\)