3. Let V be the vector space of polynomials with coefficients from R. a) Show that the following polynomials are linearly dependent: P1 (x) = x - 3x + 1, P2(x) = 2x + 1, p3(x) = -x + 5x b) Show that the set B below is a basis for V: k B = {px(x) | k = 0, 1, ...} where Pr(x) = j=0 so that po(x) = 1, p1 (x) = 1+ x, p2(x) = 1+x + x2, etc.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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3. Let V be the vector space of polynomials with coefficients from R.
a) Show that the following polynomials are linearly dependent:
P1 (x) = x° – 3x + 1,
P2(x) = 2x + 1, p3(x) = -x³ + 5x
b) Show that the set B below is a basis for V:
B = {pk(x) | k = 0, 1, ...} where pr:(x) =
Σ
j=0
so that po(x) = 1, p1(x) = 1+x, p2(x) = 1+ x + x², etc.
Transcribed Image Text:3. Let V be the vector space of polynomials with coefficients from R. a) Show that the following polynomials are linearly dependent: P1 (x) = x° – 3x + 1, P2(x) = 2x + 1, p3(x) = -x³ + 5x b) Show that the set B below is a basis for V: B = {pk(x) | k = 0, 1, ...} where pr:(x) = Σ j=0 so that po(x) = 1, p1(x) = 1+x, p2(x) = 1+ x + x², etc.
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