By repeated use of the addition formula tan(x + y) = (tanx + tany) / (1 -

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By repeated use of the addition formula tan(x + y) = (tanx + tany) / (1 - tanx tany)
Show that π/4 = 3tan-1 (1/4) + tan-1(5/99)

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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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Question Posted: Jun 21, 2016 10:18 AM

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By repeated use of the addition formula tan(x + y) = (tanx + tany) / (1 -

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