On what interval is the formula d/dx (tanh -1 x) = 1/(x 2 - 1) valid?

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On what interval is the formula d/dx (tanh^-1 x) = 1/(x² - 1) valid?

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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Question Posted: Apr 06, 2019 11:42 AM

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On what interval is the formula d/dx (tanh -1 x) = 1/(x 2 - 1) valid?

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Calculus Early Transcendentals

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