Answer
Ans. (14, 8) , (-1, 8) & (0, -5)
Work Step by Step
Given:-(a, b) •(c, d) =(ac-bd, ad+bc)
1.(2, 3) •(4, -2)
=(8+6, -4+12)
=(14, 8)
2.(2, -1) •(-2, 3)
=(-4+3, 6+2)
=(-1, 8)
3.(-1, -2) •(2, 1)
=(-2+2, -1-4)
=(0, -5)
Ans.
Thomas' Calculus 13th Edition
by Thomas Jr., George B.
Published by
Pearson
ISBN 10:
0-32187-896-5
ISBN 13:
978-0-32187-896-0
Appendices - Section A.7 - Complex Numbers - Exercises A.7 - Page AP-34: 1
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