Let K} endowed with the usual notions of pointwise addition and scalar mul- tiplication. Define two linear operators, R, L: V → V by [L(f)] (n) = f(n+1) and [R(f)] (n) = {(n-1) n=1 f(n-1) n>2

Linear Algebra: A Modern Introduction
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Chapter6: Vector Spaces
Section6.2: Linear Independence, Basis, And Dimension
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Let V = {f: N→ R} endowed with the usual notions of pointwise addition and scalar mul-
tiplication. Define two linear operators, R, L: V→ V by
[L(f)] (n) = f(n+1) and [R(f)] (n) = ⋅
{(₁-1)
n = 1
f(n-1) n ≥2
Determine ker(L) and im(L).
Note: One of these is finite dimensional. A good exercise would be to find a basis for
that subspace, but we won't ask you to do that in this question.
Transcribed Image Text:Let V = {f: N→ R} endowed with the usual notions of pointwise addition and scalar mul- tiplication. Define two linear operators, R, L: V→ V by [L(f)] (n) = f(n+1) and [R(f)] (n) = ⋅ {(₁-1) n = 1 f(n-1) n ≥2 Determine ker(L) and im(L). Note: One of these is finite dimensional. A good exercise would be to find a basis for that subspace, but we won't ask you to do that in this question.
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