Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 11 - Section 11.4 - Partial Sums of Arithmetic and Geometric Sequences - Exercise Set - Page 660: 52



Work Step by Step

Cancelling the common factors between the numerator and the denominator, the given expression, $ \dfrac{5\cdot4\cdot3\cdot2\cdot1}{3\cdot2\cdot1} ,$ simplifies to \begin{array}{l}\require{cancel} \dfrac{5\cdot4\cdot\cancel{3\cdot2\cdot1}}{\cancel{3\cdot2\cdot1}} \\\\= 5\cdot4 \\\\= 20 .\end{array}
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