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Line 30: The [[absolute value]] <math>x \mapsto \|x\|,</math> <math>x \mapsto x^2,</math> <math>x \mapsto x^4n</math> for any even integer <math>n,</math> [[trigonometric function\|cosine]] <math>\cos,</math> *[[hyperbolic function\|hyperbolic cosine]] <math>\cosh,</math>

Even and odd functions: Difference between revisions