Find a basis for span(l - x, x - x2, 1 - x2, 1 - 2x + x2) in P 2
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Inner Product Spaces
Section5.CM: Cumulative Review
Problem 11CM
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Question
Find a basis for span(l - x, x - x2, 1 - x2, 1 - 2x + x2) in P 2
Expert Solution
Step 1
We know that is the vector space of all polynomials of degree less than or equal to n. This implies
that is the vector space of all polynomials of degree less than or equal to 2.
The basis of the vector space is the set . We have to find the basis for the span of the
set .
Step 2
For the polynomial , we can write . For the polynomial , we can write
.
For the polynomial , we can write . For the polynomial , we can write
. So we can write the vectors in the matrix form as .
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