4. Let T : R" that is||T(x)|| = ||æ|| for all re R". R" be a linear transformation that preserves lengths; (a) Show that T preserves orthogonality. (b) Show that the standard matrix of [A] of T is an orthogonal matrix.

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Linear Transformations
Section6.3: Matrices For Linear Transformations
Problem 52E: Let T be a linear transformation T such that T(v)=kv for v in Rn. Find the standard matrix for T.
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4. Let T : R" → R" be a linear transformation that preserves lengths;
that is||T(r)|| = ||æ|| for all x e R".
(a) Show that T preserves orthogonality.
(b) Show that the standard matrix of [A] of T is an orthogonal matrix.
Transcribed Image Text:4. Let T : R" → R" be a linear transformation that preserves lengths; that is||T(r)|| = ||æ|| for all x e R". (a) Show that T preserves orthogonality. (b) Show that the standard matrix of [A] of T is an orthogonal matrix.
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