? matrices. ? matrices. ηχη 1. V Rnxn, and S is the subset of all upper triangular = 2. V Rnxn, and S is the subset of all symmetric = ? 3. V = C5 (R), and S is the subset of V consisting of those functions satisfying the differential equation y(5) = 0. ? 4. V is the vector space of all real-valued functions defined on the interval (-∞, ∞), and S is the subset of V consisting of those functions satisfying f(0) = 0. ? 5. V = C³ (R), and S is the subset of V consisting of those functions y satisfying the differential equation y"" — y' = 1. -

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