m9.5-3 pdf 13 / 15 100% + Problem 1 Ax = b A = randn(n,n) + 10*eye(n,n) b = randn(n,1) Presentation Problem (MP4) Two ca

[answerhappygod]

M9 5 3 Pdf 13 15 100 Problem 1 Ax B A Randn N N 10 Eye N N B Randn N 1 Presentation Problem Mp4 Two Ca 1 (46.71 KiB) Viewed 33 times

please answer the 4questions all.
please write a matlab code.
m9.5-3 pdf 13 / 15 100% + Problem 1 Ax = b A = randn(n,n) + 10*eye(n,n) b = randn(n,1) Presentation Problem (MP4) Two cases: (1) n=150, (2) n=250 (i) Show that the above linear equation has a unique solution (ii) Use MATLAB to construct the upper triangular and back substitution algorithm to find the solution (iii) Use MATLAB to construct the LU decomposition algoroithm to find the solution (you may need the permutation step to do the LU decomposition) (iv) Verify your solution using "linsolve" in MATLAB