If and exist but are not equal, then is not differentiable at c, and the graph

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If lim h0- f(c+h)-f(c) hand lim f(c+h)-f(c) h0+ h exist but are not equal, then ƒ is not differentiable at c, and the graph of ƒ has a corner at c. Prove that f is continuous at c.

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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