Let W be the vector space of all polynomials in P2 with zero constant term. That is, W = {ax² + bx : a, b = R}. E Let L P₁ → W be the function defined by L(ax + b) = ax² + bx for all polynomials ax + b € P₁. (a) Show that L is a linear transformation. (b) Prove that T is an isomorphism. (c) Use (b) to conclude that W≈ P₁. Find dim W without looking for a basis for W.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Let W be the vector space of all polynomials in P2 with zero constant term. That is,
W = {ax² + bx : a,b ≤ R}.
Let L: P₁ → W be the function defined by L(ax + b) = ax² + bx for all polynomials ax + b € P₁.
(a) Show that L is a linear transformation.
(b) Prove that T is an isomorphism.
(c) Use (b) to conclude that W≈ P₁. Find dim W without looking for a basis for W.
Transcribed Image Text:Let W be the vector space of all polynomials in P2 with zero constant term. That is, W = {ax² + bx : a,b ≤ R}. Let L: P₁ → W be the function defined by L(ax + b) = ax² + bx for all polynomials ax + b € P₁. (a) Show that L is a linear transformation. (b) Prove that T is an isomorphism. (c) Use (b) to conclude that W≈ P₁. Find dim W without looking for a basis for W.
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