Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 8 - Polar Coordinates; Vectors - Section 8.3 The Complex Plane; De Moivre's Theorem - 8.3 Assess Your Understanding - Page 614: 2


$\sin A \cos B+\cos A \sin B$

Work Step by Step

The sum formula for the sine function is: $$\sin (A+B)=\sin A \cos B+\cos A \sin B$$ Thus, the missing expression in the given statement is: $$\sin A \cos B+\cos A \sin B$$
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