Which of these subsets of the vector space of 2 2 matrices are subspaces under the

Which of these subsets of the vector space of 2 × 2 matrices are subspaces under the inherited operations? For each one that is a subspace, parametrize its description. For each that is not, give a condition that fails.
(a)

(b)

(c)

(d)

Transcribed Image Text:

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