Determine the stability of an=0.2an−1+0.3an−2a_n = 0.2a_{n-1} + 0.3a_{n-2}an=0.2an−1+0.3an−2.
Stable because roots are inside the unit circle.
Unstable because roots are outside the unit circle.
Stable because roots are outside the unit circle.
Unstable because roots are complex.