Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.4 - Rational Expressions - 1.4 Exercises - Page 42: 1

Answer

(a) and (c) are rational expressions

Work Step by Step

By definition is, a rational expression is a fractional expression in which both the numerator and the denominator are polynomials. (a) and (c) satisfy this condition. However, (b) does not, because its numerator contains a radical.
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