DP6.3 A unity negative feedback system with

L(s) Ge(s)G(s)= K(1+2s) s(1+Ts)(1 + 5s) has two parameters to be selected. (a) Determine and plot the regions of stability for this system. (b) Select and K so that the steady-state error to a unit ramp input is less than or equal to 0.1. (c) Determine the percent overshoot for a step input for the design selected in part (b).