A. Is it a Subspace? Consider the following vector spaces V and subsets U. Determine if U is a subspace of V. Make sure to justify your findings. 1. U₁ = Set of 3 x 3 upper triangular matrices. V₁ = Set of all 3 x 3 matrices. (You may consider regular matrix addition and scalar multiplication.) 2. U₂ = Set of quadratic polynomials whose coefficients add up to 1. (examples: 3x²+2x −4; x²-x+1; 4x - 3) V₂ = P(2), set of all quadratic polynomials (ax² + bx + c) 3. U3 Set of 4 x 4 diagonal matrices. = V3 Set of all 4 x 4 matrices. =
A. Is it a Subspace? Consider the following vector spaces V and subsets U. Determine if U is a subspace of V. Make sure to justify your findings. 1. U₁ = Set of 3 x 3 upper triangular matrices. V₁ = Set of all 3 x 3 matrices. (You may consider regular matrix addition and scalar multiplication.) 2. U₂ = Set of quadratic polynomials whose coefficients add up to 1. (examples: 3x²+2x −4; x²-x+1; 4x - 3) V₂ = P(2), set of all quadratic polynomials (ax² + bx + c) 3. U3 Set of 4 x 4 diagonal matrices. = V3 Set of all 4 x 4 matrices. =
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.3: Spanning Sets And Linear Independence
Problem 42EQ
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