Where are the functions f 1 (x) = sin x and f 2 (x) = sin x

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Where are the functions f1(x) = ∣sin x∣ and f2(x) = sin ∣x∣ differentiable?

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Calculus Of A Single Variable

ISBN: 9781337275361

11th Edition

Authors: Ron Larson, Bruce H. Edwards

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