For the vectors A=x + 2ŷ – î = (1, 2, – 1), B=ŷ + î = (0, 1, 1), C=î-ŷ = (0, 1, 1), a) Prove that Ax (B x C) = B (A · C) – C (A · B) b) Find unit vector in the direction of A vector

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.1: The Geometry And Algebra Of Vectors
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Q1)
For the vectors
A = î+ 2ŷ – î = (1, 2, – 1), B=ŷ +î= (0, 1, 1), C=î-ŷ=(0, 1, 1),
a) Prove that
Ax (B x C) = B (A · C) – C (A · B)
b) Find unit vector in the direction of A vector
Transcribed Image Text:Q1) For the vectors A = î+ 2ŷ – î = (1, 2, – 1), B=ŷ +î= (0, 1, 1), C=î-ŷ=(0, 1, 1), a) Prove that Ax (B x C) = B (A · C) – C (A · B) b) Find unit vector in the direction of A vector
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