Mathematics, 02.04.2020 05:03, lindseydupre

Let V be the vector space of all 2×2 matrices with real entries. Let H be the set of all 2×2 matrices with real entries that have trace 0. Is H a subspace of the vector space V?

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Let V be the vector space of all 2×2 matrices with real entries. Let H be the set of all 2×2 matrice...