3. Let V and W be n and m dimensional F-vector spaces and let B and A be bases for V and W respectively. Let ³ : V → Fn and 7 : W → Fm denote the coordinate isomorphisms. Let S : V→ W be a linear transformation. (a) Prove that 7 maps Ker S onto null[S] and √ maps imS onto col[S]. ² (b) Conclude that null[S] ≈ (ker S) and col[S] ≈ imS are isomorphisms. (c) Write a statement that connects rank and nullity of [S] to the kernel and image of S.

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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3. Let V and W be n and m dimensional F-vector spaces and let B and A be bases for V and
W respectively. Let YB V → Fn and A: W→ Fm denote the coordinate isomorphisms.
Let S V W be a linear transformation.
(a) Prove that 7 maps Ker S onto null[S] and 7 maps imS onto col[S]. 2
(b) Conclude that null[S] ≈ (ker S) and col[S] ≈ imS are isomorphisms.
(c) Write a statement that connects rank and nullity of [S] to the kernel and image of S.
Transcribed Image Text:3. Let V and W be n and m dimensional F-vector spaces and let B and A be bases for V and W respectively. Let YB V → Fn and A: W→ Fm denote the coordinate isomorphisms. Let S V W be a linear transformation. (a) Prove that 7 maps Ker S onto null[S] and 7 maps imS onto col[S]. 2 (b) Conclude that null[S] ≈ (ker S) and col[S] ≈ imS are isomorphisms. (c) Write a statement that connects rank and nullity of [S] to the kernel and image of S.
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