Pls help solve D and E by hand, the letters marked A and B in yellow, in part (E) have values 5 and 4 respectively. Pls

[answerhappygod]

Pls help solve D and E by hand, the letters marked
A and B in yellow, in part (E) have values 5 and 4
respectively. Pls show thorough steps. Need answer
urgently, good rating assured. Pls solve in a timely manner,
thanks!

Pls Help Solve D And E By Hand The Letters Marked A And B In Yellow In Part E Have Values 5 And 4 Respectively Pls 1 (19.99 KiB) Viewed 14 times

Pls Help Solve D And E By Hand The Letters Marked A And B In Yellow In Part E Have Values 5 And 4 Respectively Pls 2 (25.24 KiB) Viewed 14 times

The transfer functions of the control system shown in Figure Q1a are as follows: Gc(s) - K (s + 3)2 Gp(s) (s + 5) (s + 1)(s + 4) and H(s) = 1. R(S) r(t) + E(s). e(t) Gc(s) Gp(s) C(s) c(t) H(s) Figure Q1a
(d) With the aid of the Routh-Hurwitz stability criterion, investigate the range of the gain K that would guarantee the stability of the system and hence, find the frequency of oscillation at the marginal stability point. [8 marks) (e) An input r(t) = 1.Au(t) is applied to the system, where the function u(t) is the unit step function. It is desired that the steady-state error, ess < 0.13. Determine the minimum value of K that would satisfy the design requirement. [6 marks]