3 3 points let n 2 is the set s of all singular n x n matrices a subsp
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(3) (3 points) Let n > 2. Is the set S of all singular n x n matrices a subspace of the vector space V of all n x n
matrices? If it is, check that S satisfies the definition for subspaces; if it is not, give an example in which a condition for subspaces is violated by S.