Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 6 - Section 6.2 - Trigonometry of Right Triangles - 6.2 Exercises - Page 488: 30

Answer

sin30 x csc30 = 1

Work Step by Step

The sin of 30 = .5. The csc is $\frac{1}{sin}$ so the csc of 30 is $\frac{1}{\frac{1}{2}}$ = 2. .5 x 2 = 1.
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