|| - Consider the function f(x) = (w + 1)22-1 .Do what is asked: Let w=9 and u=6. a) Using Gaussian elimination with pivoting, determine the coefficients of the polynomial that interpolates the f(x) em 20 = -1, xi = 1 and 12 = u + 2 function f(x) at necessarily solving a 3x3 linear system. In each step, explain the calculation of pivots and multipliers. TIP: Perform all calculations with the calculator set to radian angles