Consider the tetrahedron spanned by vectors a, b, and c as in Figure 25(A). Let A, B,

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Consider the tetrahedron spanned by vectors a, b, and c as in Figure 25(A). Let A, B, C be the faces containing the origin O, and let D be the fourth face opposite O. For each face F, let vF be the vector that is perpendicular to the face, pointing outside the tetrahedron, of magnitude equal to twice the area of F. Prove the relations

VA+VB+Vc =axb+bXc+cXa VA + VB + VC + VD = 0 Show that vp = (c-b) x (b-a). a (A) b VD a NA 0 (B) VD b

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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