Question: Compute the products in Exercises 1-2 using (a) the definition, as in Example 1, and (b) the row-vector rule for computing Ax. If a product

Compute the products in Exercises 1-2 using (a) the definition, as in Example 1, and (b) the row-vector rule for computing Ax. If a product is undefined, explain why.
1.
Compute the products in Exercises 1-2 using (a) the definition,

2.

Compute the products in Exercises 1-2 using (a) the definition,

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