Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 6 - Inverse Circular Functions and Trigonometric Equations - Section 6.1 Inverse Circular Functions - 6.1 Exercises - Page 259: 63

Answer

$0.83798122$

Work Step by Step

$y=$arctan $1.1111111=\tan^{-1} 1.1111111$ Ensuring that the calculator is in radians, we type $\tan^{-1} 1.1111111$ into the calculator and solve: $\tan^{-1} 1.1111111\approx0.83798122$ Therefore, $y=$arctan $1.1111111\approx0.83798122$.
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