Trigonometry (11th Edition) Clone

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

Chapter 7 - Applications of Trigonometry and Vectors - Section 7.2 The Ambiguous Case of the Law of Sines - 7.2 Exercises - Page 310: 10

Answer

There are no triangles which can be formed with the given parts.

Work Step by Step

We can use the law of sines to find the angle $A$: $\frac{b}{sin~B} = \frac{a}{sin~A}$ $sin~A = \frac{a~sin~B}{b}$ $sin~A = \frac{(82)~sin~(100^{\circ})}{60}$ $sin~A = 1.3459$ Since there is no angle $A$ such that $sin~A \gt 1$, the angle $A$ is not defined. There are no triangles which can be formed with the given parts.
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