Consider the system x=Ax where A is given by

[ A= -b3 0 0 1 0 1 l 0 -b2 -bl

(A is called the Schwar-z matn::r.) Show that the fir-st column of the Routh's ar-my of the characteristic equation lsi- AI = 0 consists of 1, b1 , b2 , and blb3.

Problem