Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 5 - Sequences, Mathematical Induction, and Recursion - Exercise Set 5.1 - Page 243: 18

Answer

a.1 b.2 c.-4 d.0 e.-2

Work Step by Step

a. Σ ai from 0 to 6=a0+a1+a2+a3+a4+a5+a6= 2+3-2+1+0-1-2=1 b.Σ a- from 0 to 0=a0=2 c. Σ a2j from 0 to 3 = a(2*1)+a(2*2)+a(2*3)= a2+a4+a6=-2+0-2=-4 d.兀 from 0 to 6 = a0*a1*a2*a3*a4*a5*a6= 2*3*-2*0*1*2*-1=0 e.兀 from 2 to 2 = a2=-2
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