please do original work, question has been modified

3). Calculate for the simplified two block (process and controller) block diagram the response to a negative step change (2/s) if the controller is a PI. Calculate the long-term value. Plot the response. Use: Gca(s)=(1+s)/s,Gsys(s)=3/(5s+1). 3). Calculate for the simplified two block (process and controller) block diagram the response to a negative step change (2/s) if the controller is a PI. Calculate the long-term value. Plot the response. Use: Gca(s)=(1+s)/s,Gsys(s)=3/(5s+1)