(a) Leten Yn-1 (or In+1 = yn) and rewrite the 2nd-order Adams-Bashforth equation as a system of two equations for in the form: Yn Tn 2n+1 Yn+1 1=4[3] where A as a 2 x 2 matrix. Now you have a single-step method, not a multistep method, but for a vector quantity. (a) Leten Yn-1 (or In+1 = yn) and rewrite the 2nd-order Adams-Bashforth equation as a system of two equations for in the form: Yn Tn 2n+1 Yn+1 1=4[3] where A as a 2 x 2 matrix. Now you have a single-step method, not a multistep method, but for a vector quantity