True or False? In Exercises 85 and 86, determine whether

Chapter 2, Problem 2.1.86

(choose chapter or problem)

True or False? In Exercises 85 and 86, determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text.(a) If A is an m n matrix and B is an n r matrix,then the product AB is an m r matrix.(b) The matrix equation Ax = b, where A is thecoefficient matrix and x and b are column matrices,can be used to represent a system of linear equations.

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