A casual LTI system is described by the difference equation 2y[n] = αy[n - 2] - 2x[n] + βx[n -1] The system is stable only if

A casual LTI system is described by the difference equation 2y[n] = �

1.	A casual LTI system is described by the difference equation 2y[n] = αy[n - 2] - 2x[n] + βx[n -1] The system is stable only if
A.	\|α\| = 2 \|β\| < 2
B.	\|α\| > 2 \|β\| > 2
C.	\|α\| < 2 any value of β
D.	\|β\| < 2, any value of α
Answer» D. \|β\| < 2, any value of α