Exame Nacional De Matemática (12.a Classe) Practice Questions - Angola 12th Grade National Examination - Mathematics (Exame Nacional De Matemática Da 12.a Classe) Exam

Which of the following real functions is an odd function (função ímpar)?

f(x) = x^2 + cos(x) f(x) = x^3 / (x^2 + 1) f(x) = |x| - 3x^2 f(x) = e^x - e^(-x) + 2

Correct Answer:

f(x) = x^3 / (x^2 + 1)

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