Given a vector < 3,-1,2 > and 2 points, A(5,–2,7) and B(9,–2,1) in a plane. (a) Find dot product of vector < 3,-1,2 > and AB. (b) Calculate cross product between vectors AB and < 3,-1,2 >.

Elementary Linear Algebra (MindTap Course List)
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ISBN:9781305658004
Author:Ron Larson
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Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
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1. Given a vector < 3,-1,2 > and 2 points, A(5, –2,7) and B(9,–2,1) in a plane.
(a) Find dot product of vector < 3,-1,2 > and AB.
(b) Calculate cross product between vectors AB and < 3,-1,2 >.
Transcribed Image Text:1. Given a vector < 3,-1,2 > and 2 points, A(5, –2,7) and B(9,–2,1) in a plane. (a) Find dot product of vector < 3,-1,2 > and AB. (b) Calculate cross product between vectors AB and < 3,-1,2 >.
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