Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 8 - Quiz (Sections 8.1-8.4) - Page 385: 6d



Work Step by Step

$2$ cis $0^{\circ}$=$2(\cos0^{\circ}+i\sin0^{\circ})$ It is known that $\cos0^{\circ}=1$ and $\sin0^{\circ}=0$ Substituting these values in the expression and solving: $2(\cos0^{\circ}+i\sin0^{\circ})=2(1+i(0))=2(1)=2$
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