Work through each of the axioms in Def 3.5 to show that the set of polynomials of degree 3 or less, R3[X] := {ao + a₁X + a₂X² + α3X³ : a₁ ≤ R}, forms a vector space over the scalars R.

Elementary Linear Algebra (MindTap Course List)
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Chapter4: Vector Spaces
Section4.2: Vector Spaces
Problem 37E: Let V be the set of all positive real numbers. Determine whether V is a vector space with the...
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Definition 3.5. A vector space V over R (or C) is a non-empty set V consisting of
‘vectors' ū, V, w ... € V and ‘scalars' c = R (or C) together with ‘vector addition’ū+v and
'scalar multiplication' √ → cʊ satisfying
(a.) + EV and cv € V
(b.) ū+v=v+ū
(c.) ū+ (v+w) = (ū+ v) + w
(d.) 30€ V s.t. v + 0 = v
(e.) 3-u V s.t. ū+(-u) = 0
(f.) 1ū=ū
(g.) c(ữ +ừ) = cu trữ
(h.) (c+ c)ucu + c'u
[closure]
[commutativity]
[associativity]
[zero vector]
[negative vector]
[scalar 1 € R)]
Transcribed Image Text:Definition 3.5. A vector space V over R (or C) is a non-empty set V consisting of ‘vectors' ū, V, w ... € V and ‘scalars' c = R (or C) together with ‘vector addition’ū+v and 'scalar multiplication' √ → cʊ satisfying (a.) + EV and cv € V (b.) ū+v=v+ū (c.) ū+ (v+w) = (ū+ v) + w (d.) 30€ V s.t. v + 0 = v (e.) 3-u V s.t. ū+(-u) = 0 (f.) 1ū=ū (g.) c(ữ +ừ) = cu trữ (h.) (c+ c)ucu + c'u [closure] [commutativity] [associativity] [zero vector] [negative vector] [scalar 1 € R)]
Work through each of the axioms in Def 3.5 to show that the set of polynomials
of degree 3 or less,
R3[X] := {ao + a₁X + a₂X² + α3X³ : a₁ ≤ R},
forms a vector space over the scalars R.
Transcribed Image Text:Work through each of the axioms in Def 3.5 to show that the set of polynomials of degree 3 or less, R3[X] := {ao + a₁X + a₂X² + α3X³ : a₁ ≤ R}, forms a vector space over the scalars R.
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