Question:
Properties of system du/dt=Au
Let
A = ( a -1 3 )
( 1 a+1)
Circle the letters corresponding to the statements that are true for the system du/dt = Au.
A. The system is unstable when a > 0.
B. The system is stable when a < O.
C. The system is neutrally stable when a = -2.
D. The system is neutrally stable when a = 2.
E. Trajectories of the system oscillate when -2 < a < 2.