2. Let U, V be subspaces of a vector space W. (a) Show that their intersection UnV is also a subspace of W. (b) Give examples of subspaces U, V of R2 such that UU V is not a subspace of R².

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.3: Subspaces Of Vector Spaces
Problem 56E: Give an example showing that the union of two subspaces of a vector space V is not necessarily a...
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2. Let U, V be subspaces of a vector space W.
(a) Show that their intersection UnV is also a subspace of W.
(b) Give examples of subspaces U, V of R2 such that U UV is not a subspace of R².
Transcribed Image Text:2. Let U, V be subspaces of a vector space W. (a) Show that their intersection UnV is also a subspace of W. (b) Give examples of subspaces U, V of R2 such that U UV is not a subspace of R².
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