4. Three vectors from the origin are given as rį = (7,3, –2), r2 = (-2,7,–3), and r3 = (0, 2, 3). Find a. a unit vector perpendicular to both rị and r2 b. a unit vector perpendicular to the vectors A = r¡ - 12 and B = r2 – r3 c. the area of the triangle defined by the heads of r, r2, and r3

4. Three vectors from the origin are given as rį = (7,3, –2), r2 = (-2,7,–3), and r3 = (0, 2, 3). Find a. a unit vector perpendicular to both rị and r2 b. a unit vector perpendicular to the vectors A = r¡ - 12 and B = r2 – r3 c. the area of the triangle defined by the heads of r, r2, and r3

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section8.4: The Dot Product

Problem 16E

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