Let V, W be finite dimensional vector spaces and T: V → W be a linear transformation. Let A = [T]½ and B= [T], where B, B' and Y, Y' are bases of V and W respectively. Let R be the RREF of A and R' be the RREF of B. (a) Prove that the number of leading ones in R is equal to the number of leading ones in R'. (b) Show by example, that R and R' need not be equal.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.4: Linear Transformations
Problem 24EQ
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Let V, W be finite dimensional vector spaces and T : V → W be a linear transformation. Let A
[T], and B = [T. where B, B' and
Y, Y' are bases of V and W respectively.
Let R be the RREF of A and R' be the RREF of B.
(a) Prove that the number of leading ones in R is equal to the number of leading ones in R'.
(b) Show by example, that R and R' need not be equal.
Transcribed Image Text:Let V, W be finite dimensional vector spaces and T : V → W be a linear transformation. Let A [T], and B = [T. where B, B' and Y, Y' are bases of V and W respectively. Let R be the RREF of A and R' be the RREF of B. (a) Prove that the number of leading ones in R is equal to the number of leading ones in R'. (b) Show by example, that R and R' need not be equal.
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