The elements of f(t) are 1+kt and t here are 0<t<1
the other element is 1 and t here are 1<t<2.
prove if k is not equal to zero, the period f is 2.
i know the graph of element 1 but how should I graph the other element with k.
Based from the graph, the period is 2.
How should I prove that using mathematical statement?
The problem is all about fundamental period