Answer
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Work Step by Step
Exercise 79(b) showed that a maximum distance can be achieved when throwing at an angle of $45^\circ$. Thus, for the best performance, aim at an elevation angle of $45^\circ$ before the throw.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 5 - Section 5.3 - Double-Angle, Power-Reducing, and Half-Angle Formulas - Exercise Set - Page 682: 94
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