Problem 12. Which of the fewing is not a vector space? (a) R¹ = {x = (X1, X2, . . .‚ Xn) : Xi € R for all 1 ≤ i ≤ n}, (b) P₁ = {p(t) = ao+a₁t++ ant": ao, a₁,..., an ER"}, (c) S = {{yk}kez = (...,Y-2, Y-1, yo, 31, 32, ...): Yk ER for all k € Z} (d) R₂0 = {x ER: x ≥ 0} = [0, ∞).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Problem 12. Which of the foxwing is not a vector space?
(a) R¹ = {x = (X1, X2, ..., Xn) : X¡ ER for all 1 ≤ i ≤n},
...
antao,
(b) P₁ = {p(t) = ao + a₁t+ + ant": ao, a₁,..., an ER"]},
(c) S = {{yk}kez = (...,Y-2, Y-1, yo, y1, 92,...): Y ER for all k € Z}
(d) R₂0 = {x € R: x ≥ 0} = [0, ∞).
(e) None of the above
Transcribed Image Text:Problem 12. Which of the foxwing is not a vector space? (a) R¹ = {x = (X1, X2, ..., Xn) : X¡ ER for all 1 ≤ i ≤n}, ... antao, (b) P₁ = {p(t) = ao + a₁t+ + ant": ao, a₁,..., an ER"]}, (c) S = {{yk}kez = (...,Y-2, Y-1, yo, y1, 92,...): Y ER for all k € Z} (d) R₂0 = {x € R: x ≥ 0} = [0, ∞). (e) None of the above
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