Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 1 - Problems - Page 76: 19

Answer

$f_n(x) = x^{2^{n+1}}$

Work Step by Step

We can evaluate the the first elements of the sequence: $f_0(x) = x^2$ $f_1(x) = (x^2)^2 = x^4$ $f_2(x) = (x^4)^2 = x^8$ $f_3(x) = (x^8)^2 = x^{16}$ etc... We can see that $f_n(x) = x^{2^{n+1}}$
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