5X1 + xz X3 = 4 Solve the system Xl + 4x2 + 2x3 = 15 using: - 2X2 + 5X3 = 12 (0) O, x2(0) = O and x3(0) = O and 4 iterations) a. Jacobi (use Xl b. Gauss-Seidel (use x2(0) = O and x3(0) = O and 4 iterations)