If the three sides of a triangle are represented by vectors A, B, and C, all directed

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If the three sides of a triangle are represented by vectors A, B, and C, all directed counterclockwise, show that |C|² = (A + B) · (A + B) and expand the product to obtain the law of cosines.

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Engineering Electromagnetics

ISBN: 978-0073380667

8th edition

Authors: William H. Hayt, John A.Buck

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Question Posted: Sep 08, 2018 11:45 AM

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If the three sides of a triangle are represented by vectors A, B, and C, all directed

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Engineering Electromagnetics

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