Prove that every function is the sum of an even function + and an odd

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Prove that every function ƒ is the sum of an even function ƒand an odd function ƒ−. ƒ±(x) = 1/2 (ƒ(x) ± ƒ(−x)). Express ƒ(x) = 5e+ 8e−x in terms of cosh x and sinh x.

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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