Subsets That Are Not Subspaces In Exercises 720, W is not
Chapter 4, Problem 4.3.14(choose chapter or problem)
Subsets That Are Not Subspaces In Exercises 720, W is not a subspace of the vector space. Verify this by giving a specific example that violates the test for a vector subspace (Theorem 4.5).W is the set of all vectors in R3 whose components arePythagorean triples.
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