College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter R - Review Exercises - Page 74: 40

Answer

Multiplicative Identity

Work Step by Step

The Multiplicative Identity states that any number multiplied to $1$ (the multiplicative identity), will give an equivalent number. This is shown in the given expression, $ \dfrac{1}{\sqrt{2}}\cdot\dfrac{\sqrt{2}}{\sqrt{2}}=\dfrac{\sqrt{2}}{2} .$
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