Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 9 - Section 9.4 - Rotation of Axes - Exercise Set - Page 1010: 43

Answer

See explanations.

Work Step by Step

If the process involves the removing of the $xy$-term, the most time-consuming part would be to establish the rotation formulas and get the new equation without the $x'y'$-term.
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