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Sudhanshu Ranjan posted an Question
August 29, 2020 • 04:49 am 30 points
  • CSIR NET
  • Mathematical Sciences

Let a and b be two subspaces of vector space v. show that span of intersection of a and b is contained in the intersection of the span (a) and span (b).

Let A and B be two subspaces of vector space V. Show that span of intersection of A and B is contained in the intersection of the span (A) and Span (B).

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  • Shashi ranjan sinha best-answer

    but converse is not true. Take A = { (1,0), (0,1)} and B ={ (-1,0),(0,-1)} . Intersection of A and B is empty and so the subspace spanned by it is zero subspace of R². On the other hand, Span(A) = span(B) = R² and so their intersection is R². clearly R² is not contained in zero space

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