G(s)= K(s-2)(s-4) / s(s+5)
Sketch the root locus and find the following:
a) Break away and break in points
b) The jw-axis crossing points
c) The range of gain to keep system stable
Procedure- use qoutient rule and show algebra-foil and factoring followed by quadratic to find S1,2
Use routh table to find imaginary crossing points
Solve K for stability