• Let W = {ax²+bx+c+d €R[x] |a + 2b = 0, c = 2d}. Find a spanning set for W. • Let A RJ and define WA = {X € M₂×2(R) | AX = XA}. Find a spanning set for WA. • Let W = {(a, b, c, d) = R4 |a +2c= 0, b-d=0}. Find a spanning set for W.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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• Let W = {ax²+bx+c+d € R[x]|a + 2b = 0, c = 2d}. Find a spanning set for W.
• Let A
=
0
and define WA
=
{X € M2×2 (R) | AX = XA}. Find a spanning set for WA.
• Let W = {(a, b, c, d) = R4 |a +2c= 0, b-d=0}. Find a spanning set for W.
Transcribed Image Text:• Let W = {ax²+bx+c+d € R[x]|a + 2b = 0, c = 2d}. Find a spanning set for W. • Let A = 0 and define WA = {X € M2×2 (R) | AX = XA}. Find a spanning set for WA. • Let W = {(a, b, c, d) = R4 |a +2c= 0, b-d=0}. Find a spanning set for W.
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