Let a and b be two vectors. Prove that (b – proja (b)) · a = 0. Hint: Use the definition of the vector projection to rewrite the formula.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.6: The Three-dimensional Coordinate System
Problem 9E
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Let a and b be two vectors. Prove that (b – proj, (b)) · a = 0. Hint: Use the definition of the
vector projection to rewrite the formula.
Transcribed Image Text:Let a and b be two vectors. Prove that (b – proj, (b)) · a = 0. Hint: Use the definition of the vector projection to rewrite the formula.
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