Problem 4 (Sums and direct sums) Let U, W be subspaces of a vector space V. Show that: (a) UV is a subspace of V. (b) U and W are both contained in U + W. (c) UW is the smallest subspace containing U and W, that is, U + W = span(U, W). (d) WWW.
Problem 4 (Sums and direct sums) Let U, W be subspaces of a vector space V. Show that: (a) UV is a subspace of V. (b) U and W are both contained in U + W. (c) UW is the smallest subspace containing U and W, that is, U + W = span(U, W). (d) WWW.
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.2: Vector Spaces
Problem 38E: Determine whether the set R2 with the operations (x1,y1)+(x2,y2)=(x1x2,y1y2) and c(x1,y1)=(cx1,cy1)...
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