Trigonometry (11th Edition) Clone

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

Chapter 8 - Review Exercises - Page 409: 2


$2i\sqrt 3$

Work Step by Step

Step 1: $\sqrt (-12)$ Step 2: $\sqrt (-1\times12)$ Step 3: $\sqrt -1\times\sqrt (12)$ Step 4: As $i=\sqrt -1$, the expression becomes $i\times\sqrt (12)$ Step 5: $i\times\sqrt (12)=i\times\sqrt (4\times3)=i\times\sqrt 4\times\sqrt 3=2i\sqrt 3$
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