It was the solution to this specific question. Matrix addition and scalar multiplication are defined as such in the question, ie. the question does not assume standard matrix addition and scalar multiplication. the question was, determine whether the set on which the matrix addition and scalar...
Summary:: the set of arrays of real numbers (a11, a21, a12, a22), addition and scalar multiplication defined by ; determine whether the set is a vector space; associative law
Question: determine whether the set is a vector space.
The answer in the solution books I found online says that...