Question 8 PART A pleaseeeeeee

21x.1x2 + .1x3 100 + 100 Use computer programs for both systems; convergence is fast because the norm of D is small-you only need to go up to the sixth power of the coefficient matrix D 8. Find the inverse of the following matrices by writing them in the form I D and using the sum-of-powers method on D. Check the accuracy of your answer by using the determinant-based formula for the inverse of a 2-by-2 matrix (see Section 3.3). 6 .3 7-.2 -4 8 6 0 0 .5 9. Try using the sum-of-powers method to solve the following system of equations. Why does the method fail