Engineering Electromagnetics
Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 1, Problem 1.15P

Three vectors extending from the origin are given as r1 = (7, 3, -2), r2 = (—2, 7, —3). and r3 = (0, 2, 3). Find (a) a unit vector perpendicular to both r1 and r2; (b) a unit vector perpendicular to the vectors r1 — r2 and r2 - r3; (c) the area of the triangle defined by r1 and r2; (d) the area of the triangle defined by the heads of r1, r2, and r3.

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