Answer
True
Work Step by Step
$1 + \cot^{2} 42.5 ^{\circ} = \csc^{2} 42.5^{\circ}$
$1+ 1.190954245 = 2.190954245$
$2.190954245 = 2.190954245$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 2 - Acute Angles and Right Triangles - Section 2.3 Finding Trigonometric Function Values Using a Calculator - 2.3 Exercises - Page 65: 55
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