Q4 Solve the given difference equation for 1(k) with zero initial conditions using: (a) [15pts] The sequential technique (solve k = 0, 1, 2, 3). (b) [15pts] The z-transform. (c) [10pts] Will the final-value theorem give the correct value of r(k) as k o? where 1(k) 31(k-1) +2r(k 2) = e(k) e(k)= {a 1, k = 0,1 0, k 2