Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 13 - Vector Geometry - 13.4 The Cross Product - Exercises - Page 676: 8

Answer

$1$

Work Step by Step

We calculate the determinant as follows: $$ \left|\begin{array}{rrr}{1} & {0} & {0} \\ {0} & {0} & {-1} \\ {0} & {1} & {0}\end{array}\right|=\left|\begin{array}{rrr} {0} & {-1} \\ {1} & {0}\end{array}\right|-0\left|\begin{array}{rrr} {0} & {-1} \\ {0} & {0}\end{array}\right|+0\left|\begin{array}{rrr} {0} & {0} \\ {0} & {1}\end{array}\right|=1. $$
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