Question: 4. Consider the linear system Ax = b in the form -3 5-711 X21=1-4 -7 14LT3 (a) Add a random perturbation to b with Ilanlla-0.1

4. Consider the linear system Ax = b in the form

4. Consider the linear system Ax = b in the form -3 5-711 X21=1-4 -7 14LT3 (a) Add a random perturbation to b with Ilanlla-0.1 and confirm the validity of the estimate Alcond(A) by direct computations of x, Ax, and cond(A) in MATLAB (b) Add a random perturbation to A with 11 -0.1 and confirm the validity of the estimate

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