Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 7 - Section 7.5 - More Trigonometric Equations - 7.5 Exercises - Page 575: 61

Answer

$-0.71,0.71$

Work Step by Step

Graph $\frac{\cos(x)}{1+x^{2}}$. Graph $x^{2}$. Find the intersections: $x\approx-0.71$ $x\approx0.71$
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