2. Consider the following diagram that includes three transfer functions as follows: H1(s)=2H2(s)=10s+11H3(s)=2s+11 a) Find Y(s)/X(s) b) Find the poles and zeros and plot them on the s-plane c) Sketch the figure of the output due to a unit step input. d) Write a MATLAB Code (statement) that shows part (c) e) Comment on the stability and the damping shape of the system f) Approximate the obtained transfer function Y(s)/X(s) to a first order process using i) Taylor Series, ii) Skogestad Method