EXERCISE Identify the causality property of the following systems presen past Rutrum 1) y(n) = x(n) - x(n-1) 3) y(n) = x(n) + 3x{n+4) -4) y(n) = x(na) presin 5) y(n) = x(2n)CA 6) y(n) = x(-n) Than 7) y(t) = x(t).x(t-1) 8) y(t)=x(t/2) honasual prom 2) y(n) = ax(n) Casa Des