IH A and B are any two vectors in V, prove that (A- B) x (A + B) = 2(A X B).

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.3: Spanning Sets And Linear Independence
Problem 45EQ
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30. If A
and
B are any two vectors in Vs, prove that (A - B) x (A + B) = 2(A X B).
Transcribed Image Text:30. If A and B are any two vectors in Vs, prove that (A - B) x (A + B) = 2(A X B).
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