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Elementary Linear Algebra (MindTap Course List)

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 18CM

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Determine which of the following is a subspace.
(i) W1 = {p(x) E P3 | p'(-3) < 0}
(ii) W2 = {A E R²x2 | det(A) = 0}
(iii) W3 = {X = (x1, x2, X3, X4) E R* | x1 - 2x2 + 3x3 - 4x4 = 0}
%3D
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