Let P2 denote the vector space of all polynomials in the variable x of degree less than or equal to 2. Let C = {-3, –1– x, -3 – 3x + 2x2} be an ordered basis for P2. a. Write –7+ 2x – 2x2 as a linear combination of elements from the basis C. -7+ 2x – 2x² (-3)+ (-1– x)+ (-3 – 3x + 2x2). b. Let [glc denote the coordinate representation of q relative to the basis C. Find the coordinate vector representation for 2x2 relative to the basis C. Your answer should be a vector of the general form <1,2,3>. -7+ 2x – [-7+ 2x – 2æ²]c =

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
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Chapter4: Vector Spaces
Section4.5: Basis And Dimension
Problem 69E: Find a basis for R2 that includes the vector (2,2).
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Let P2 denote the vector space of all polynomials in the variable x of degree less than or equal to 2. Let
C = {-3, –1 – x, -3 – 3x + 2x²} be an ordered basis for P2.
a. Write –7+ 2x – 2x2 as a linear combination of elements from the basis C.
-7+ 2x – 2x2
(-3)+
(-1- г)+
(-3 – 3x + 2x²).
b. Let [gc denote the coordinate representation of q relative to the basis C. Find the coordinate vector representation for
-7+ 2x – 2x2 relative to the basis C. Your answer should be a vector of the general form <1,2,3>.
[-7+ 2x – 2x2]c=
Transcribed Image Text:Let P2 denote the vector space of all polynomials in the variable x of degree less than or equal to 2. Let C = {-3, –1 – x, -3 – 3x + 2x²} be an ordered basis for P2. a. Write –7+ 2x – 2x2 as a linear combination of elements from the basis C. -7+ 2x – 2x2 (-3)+ (-1- г)+ (-3 – 3x + 2x²). b. Let [gc denote the coordinate representation of q relative to the basis C. Find the coordinate vector representation for -7+ 2x – 2x2 relative to the basis C. Your answer should be a vector of the general form <1,2,3>. [-7+ 2x – 2x2]c=
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