Answer
$$ i\times j=k, \quad i\times k=-j $$
Work Step by Step
The given unit vectors are perpendicular. According to the hand right rule, we have
$$ i\times j=k, \quad i\times k=-j $$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 13 - Vector Geometry - 13.4 The Cross Product - Preliminary Questions - Page 676: 5
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