Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 16 - Cumulative Review - Page 568: 17


The value of $\cos \left( 256{}^\circ \right)$ is $-0.2419$.

Work Step by Step

Step 1: Open Ti-83. Step 2: Press $cos$ button. Step 3: Enter the value like this, $\cos \left( 256{}^\circ \right)=-0.2419$ The obtained value is $-0.2419$. Hence the value of $\cos \left( 256{}^\circ \right)$ is $-0.2419$.
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