Let V and W be vector spaces and let T E L(V, W). (a) Suppose V is finite-dimesnional, m is a finite positive integer, and wi, ..., wm is a basis for range T. Show that there exist vectors v; E V, 1 < i< m, such that Tv; = w;, and show that these vectors v; are independent. Also show that span(v1,..., vm) null T = V.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Let V and W be vector spaces and let TE L(V, W).
(a) Suppose V is finite-dimesnional, m is a finite positive integer, and wi, ..., Wm is a basis for range T. Show
that there exist vectors v; E V, 1 < i < m, such that Tv;
independent. Also show that span(v1,..., vm) O null T = V.
= wi, and show that these vectors v; are
(b) If V is infinite-dimensional (which means m may also be infinite), does the result of (a) still hold? Explain.
Transcribed Image Text:Let V and W be vector spaces and let TE L(V, W). (a) Suppose V is finite-dimesnional, m is a finite positive integer, and wi, ..., Wm is a basis for range T. Show that there exist vectors v; E V, 1 < i < m, such that Tv; independent. Also show that span(v1,..., vm) O null T = V. = wi, and show that these vectors v; are (b) If V is infinite-dimensional (which means m may also be infinite), does the result of (a) still hold? Explain.
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