Chapter l Problems solution 1.16 renin (a no, it is a system with memory. (b)xn]=An p四]}=A2δm] 2|=0 (c)Is this system invertible? N x四=A6Sn-1] pl以]=A2{n-l]5n-3]=0Chapter 1 Problems Solution 1.16 yn= xnxn−2 (a) No ,it is a system with memory. (b) xn= A n      2 0 2 y n = A  n  n− = (c) Is this system invertible? No. xn= A n−1    1  3 0 2 y n = A  n−  n− =