Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 5 - Section 5.3 - Trigonometric Graphs - 5.3 Exercises - Page 430: 78

Answer

Solutions: x=1.11

Work Step by Step

Using a graphing calculator to graph tan(x) = 2 and including lines x=0 and x=$\pi$ to establish our desired interval, we see that the only solution (x-intercept of tan(x) = 2) is when x $\approx$ 1.107149. Since the question wants the solution rounded to 2 decimal places, the solution is x = 1.11.
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