4 3a. Express as a single vector the product: 9. 8. 9. 10 11 12 3b. Find all solutions to the equation Ax = bị, where A is the matrix above and bị is the column vector with entries [20, 47, 74, 101] 3c. Is b; = [20, 47, 74, 102] a solution of Ax = b;? Explain. 3. 2.

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A: Hello. Since your question has multiple parts, we will solve the first three parts for you. If you…

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