we have . If the statement is false provide counterexample and if true prove it. If and is differentiable on , then is differentiable on . Please help a brother get started.
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Originally Posted by Endowed we have . If the statement is false provide counterexample and if true prove it. If and is differentiable on , then is differentiable on . Please help a brother get started. (I interpret to mean as opposed to something like ) False. Take and take [a,b] to be any closed interval containing the origin.
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