Which of the following functions are periodic? Options: A . &nbsp f(x) = log x, x > 0 B . &nbsp f(x) = e x , x ϵ R C . &nbsp f(x) = x - [x], x ϵ R D . &nbsp f(x) = x + [x], x ϵ R

Which of the following functions are periodic?

Question -

Which of the following functions are periodic?

Options:

A . f(x) = log x, x > 0

B . f(x) =

e^{x}

, x

ϵ

C . f(x) = x - [x], x

ϵ

D . f(x) = x + [x], x

ϵ

Answer: Option C
:
C
f(x) = log x, is not periodic.
f(x) =

e^{x}

, is not periodic.
f(x) = x - [x] = {x}, has period 1
f(x) = x + [x], is not periodic

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