Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN: 9781133382119

Author: Swokowski

Publisher: Cengage

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Question

finding the domain of the natural log of x^2-9 ,

when solving the inequality for x^2-9>0 i got x>3 and x>-3 but the answer is really x > 3 or x-3

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