Question: Let F be a fixed 3 ( 2 matrix, and let H be the set of all matrices A in M2(4 with property that FA

Let F be a fixed 3 ( 2 matrix, and let H be the set of all matrices A in M2(4 with property that FA = 0 (the zero matrix in M3(4). Determine if H is a subspace of M2(4?

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