(a) Find the best approximation to ✅ by a vector of W. (b) Write as the sum of a vector in W and a vector in W¹. and W. (c) Find the distance between

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Suppose = [2, 1, −1]ª, ♂ = [1, −1, 1]ª and √ = [2,0, 1]T. Let W = Span{7,V}.
(a) Find the best approximation to y by a vector of W.
(b) Write ✅
y
as the sum of a vector in W and a vector in W¹.
(c) Find the distance between and W.
(d) Let A = [√, √]. Note that Aỡ ‡ ☞ for all ☞ € R². Find min ||A7
J'||.
TER²
Transcribed Image Text:Suppose = [2, 1, −1]ª, ♂ = [1, −1, 1]ª and √ = [2,0, 1]T. Let W = Span{7,V}. (a) Find the best approximation to y by a vector of W. (b) Write ✅ y as the sum of a vector in W and a vector in W¹. (c) Find the distance between and W. (d) Let A = [√, √]. Note that Aỡ ‡ ☞ for all ☞ € R². Find min ||A7 J'||. TER²
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