Using the triangle method, show graphically that (a) A-bar + B-bar = B-bar + A-bar and (b)

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Using the triangle method, show graphically that
(a) A-bar + B-bar = B-bar + A-bar and
(b) If A-bar – B-bar = C-bar, then A-bar = B-bar + C-bar
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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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