Which (if any) of the following is a subspace? Note that you must justify your answers E R2 | x 3.1 u V = {x € R³ | A²BX = Ax – Bx+ I3x} for some fixed 3 x 3 matrices A 3.2 %3D and B (note that I3 is the 3 x 3 identity matrix). W = {T(x) | x € S}, where S is a fixed, but arbitrary subspace of R" 33 and T: R" → R" is a fixed, but arbitrary linear transformation.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Which (if any) of the following is a subspace? Note that you must justify your
answers
U =
E R2 | x # 1
3.1
V = {x € R3 | A²BX = Ax – Bx+ I3x} for some fixed 3 x 3 matrices A
3.2
and B (note that Iz is the 3 x 3 identity matrix).
W = {T(x) | x € S}, where S is a fixed, but arbitrary subspace of R"
3.3
and T: R" → R" is a fixed, but arbitrary linear transformation.
Transcribed Image Text:Which (if any) of the following is a subspace? Note that you must justify your answers U = E R2 | x # 1 3.1 V = {x € R3 | A²BX = Ax – Bx+ I3x} for some fixed 3 x 3 matrices A 3.2 and B (note that Iz is the 3 x 3 identity matrix). W = {T(x) | x € S}, where S is a fixed, but arbitrary subspace of R" 3.3 and T: R" → R" is a fixed, but arbitrary linear transformation.
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