(4.1) Let V, V, and Vs be vector spaces over a field F. Let T: VV and SV₂V₁ be linear transformations. (a) Show that ST: VV is a linear transformation. (b) Show that ker TC ker (ST) and im (ST) C im S. (c) Deduce that ST can only be bijective if T is injective and S is surjective. (3) (4) (3)

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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(4.1) Let V, V, and Vs be vector spaces over a field F. Let T: VV and SV₂V₁ be
linear transformations.
(a) Show that ST: VV is a linear transformation.
(b) Show that ker TC ker (ST) and im (ST) C im S.
(c) Deduce that ST can only be bijective if T is injective and S is surjective.
(3)
(4)
(3)
Transcribed Image Text:(4.1) Let V, V, and Vs be vector spaces over a field F. Let T: VV and SV₂V₁ be linear transformations. (a) Show that ST: VV is a linear transformation. (b) Show that ker TC ker (ST) and im (ST) C im S. (c) Deduce that ST can only be bijective if T is injective and S is surjective. (3) (4) (3)
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