Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 4 - Review - Exercises - Page 389: 80

Answer

x = 0.208, 1.971

Work Step by Step

Solve for x $ 4 - x^2 = e^{-2x}$ Use a graph in which $f(x) = 4 - x^2$ and $g(x) = e^{-2x}$ The intersection is at (0.208, 3.957) and (1.971, 0.117) Thus x = 0.208, 1.971 Graph is below.
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