Question: - 0 1 1 Question 3: Suppose A = and b = First find A then 0 -1 0 1 0 solve Ar = b

- 0 1 1 Question 3: Suppose A = and b = First find A then 0 -1 0 1 0 solve Ar = b by calculating a = A- b. 1 2 - Question 4: Write the invertible matrix A = 1 1 ( as a product of elemen- 0 2 tary matrices (the actual matrices and not just their symbolic form)

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