 Solution

ID: past-exam-of-the-year-1-of-the-computer-science-course-of-the-university-of-oxford/2015/discrete-mathematics-continuous-mathematics-and-probability-resit/6/a/i/solution

f : R \to R

is periodic with period

α > 0

when

f (x + α) = f (x) for every x \in R .

The period need not be the smallest positive one; for example, every positive integer multiple of a period is also a period.

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