2. Given that A(- 1, 0, – 3), B(1, – 2, – 2) and C(4, – 2, 1) are three points in the 3-dimensional coordinate system with O as the origin. (a) Find BA · BC and hence find ZABC. (b) Find the vector projection of BC onto BA. (c) Find two vectors which have magnitude equal to 6 and are perpendicular to both BA and BC. (d) Find the volume of the tetrahedron OABC.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.2: Determinants
Problem 15AEXP
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ONLY have to do the First Three Parts( A,B, C) 

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2. Given that A(- 1, 0, – 3), B(1, – 2, – 2) and C(4, – 2, 1) are three points in the 3-dimensional
coordinate system with O as the origin.
(a) Find BA · BC and hence find ZABC.
(b) Find the vector projection of BC onto BA.
(c) Find two vectors which have magnitude equal to 6 and are perpendicular to both BA and BC.
(d) Find the volume of the tetrahedron OABC.
Transcribed Image Text:2. Given that A(- 1, 0, – 3), B(1, – 2, – 2) and C(4, – 2, 1) are three points in the 3-dimensional coordinate system with O as the origin. (a) Find BA · BC and hence find ZABC. (b) Find the vector projection of BC onto BA. (c) Find two vectors which have magnitude equal to 6 and are perpendicular to both BA and BC. (d) Find the volume of the tetrahedron OABC.
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