A) The complex numbers is a 2-dimensional R-vector space. B) The set of invertible 2 × 2 matrices with entries from R is a subspace of M2(R). C) If T : V → W is a linear transformation, then it is always true that T (0V ) = 0W

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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Answer True or False

A) The complex numbers is a 2-dimensional R-vector space.

B) The set of invertible 2 × 2 matrices with entries from R is a subspace

of M2(R).

C) If T : V → W is a linear transformation, then it is always true that

T (0V ) = 0W 

D) The zero vector is always an eigenvector for a linear transformation.

E) If X ⊕ Y = X ⊕ Z then Y = Z.

F) If a function f : X → Y is surjective, then there exists g : Y → X such that f ◦ g = idY .

G) If U and W are subspaces of V, then U ∪ W is a subspace of V.

H) ⟨T,v⟩ is always a T-invariant subspace of V ( v ∈ V ).

I) For any linear transformation T : V → V , ker(T ) ≤ ker(T2).

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