Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 3 - Review Exercises - Page 136: 55



Work Step by Step

Step 1: We ensure that the calculator is in radian mode. Step 2: $\cot s=\frac{1}{\tan s}=0.5022$ Step 3: $\tan s=\frac{1}{0.5022}$ Step 4: $s=\tan^{-1} (\frac{1}{0.5022})$ Step 5: Using the inverse cosine function in the calculator, we type $\tan^{-1} (\frac{1}{0.5022})$ into the calculator and solve. Step 6: $s=\tan^{-1} (\frac{1}{0.5022})\approx1.1054$
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