2. Use the Gauss-Seidel method (a) without relaxation and (b) with relaxation (= 1.2) to solve the following system to a tolerance of s = 5%. If necessary, rearrange the equations to achieve convergence. 2×1 + 6×2 + 2×3 = 38 3×1 + x2 + 7×3 = 34 8×1 + x2 + 2×3 = 20