Question: Question 2 [25 merits] Consider the matrices 1 1 2 1 l5 1 ; [ll-LL -3, 5 1 1 1 5 1 (2.1) Use Gaussian

Question 2 [25 merits] Consider the matrices 1 1 2 1 l5 1 ; [ll-LL -3, 5 1 1 1 5 1 (2.1) Use Gaussian elimination to compute the inverse (21. [B] (2.2) Use the inverse in (2.1} above to solve the linear systems Us = bl and Cs = b2. [6) (2.3) Find the soluon ot the above two svstems by multiplying the matrix [b1 b2] bv the inverse obtained in (2.1} above. Compare the solution with that obtained in {2.2}. {4) (2.4) Solve the linear svstems in {2.2} above by applying Gaussian elimination to the augmented matrix [C : h1 lag]. [6)

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