Let A be an invertible n n matrix, and let B be an n p
Question:
Let A be an invertible n × n matrix, and let B be an n × p matrix. Explain why A-1B can be computed by row reduction:
If A is larger than 2 x 2, then row reduction of [A B] is much faster than computing both A-1 and A-1 B.
Transcribed Image Text:
If [A B]~~ [IX], then X = A¹B.
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Related Book For
Linear Algebra And Its Applications
ISBN: 9781292351216
6th Global Edition
Authors: David Lay, Steven Lay, Judi McDonald
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