The overall transfer function of a process is given by(a) What is the overall gain of 0?(b) For a first-order system, the time constant is the time for a step change M when y reaches 63.2% of the steady state. Is the equivalent time constant for the step response of the second-order system G (time when the response reaches 632% of the steady state) equal to ?1 + ?2? Show supporting calculations for the step response formula,(c) Can y(t) show oscillations for a step input? Explain.

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G = G,G? KL TI =5, 12 = 3 and G2= K2 where G1 T25 +