Determine whether th e set ẞ is a basis for the vector space V                           V = P 2,ẞ= {l, 1 + 2x + 3x2}

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 24CM
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Determine whether th e set ẞ is a basis for the vector space V                           V = P 2,ẞ= {l, 1 + 2x + 3x2}

Expert Solution
Step 1

ẞ comprises of the vectors 1 and 1 + 2x + 3x2

Step 2

Let's say a x 1 + b(1 + 2x + 3x2) = 0

Hence, (a + b) + 2bx + 3bx2 = 0

Hence, a + b = 0

2b = 0

3b = 0

The only solution is the trivial solution that is a = b = 0

Hence the two vectors are linearly independent

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