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  3. in each case below either prove that the statement

In each case below either prove that the statement is True or disprove it by giving...

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Advance Math

In each case below either prove that the statement is True ordisprove it by giving an example showing that it is False.

(i) If B is a fixed 2 × 2 matrix, then the set U = {A|A ∈ M22,AB = 0} is a subspace of M22. T or F

(ii) If u, v, w are vectors in a vector space V , then span {u,v, w} = span {u + v, u + w, v + w} T or F

(iii) The set {x,sin2 x, cos2 x} is independent in F[0, 2Ï€] T orF

(iv) {1 + x, x + x 2 , x2 + x 3 , x3} is a basis of P3. T orF

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