period

I salute the entire community on my behalf. when I was working on square wave on signals and systems, I thought that I sometimes confused the period of the signs. i find that the period of such a sign is 4. but I'm not sure if I did it by heart or really knowing how it's done. how do we find...

Here is the i (graph a) and i^2 graph (graph b) for the RMS calculation: My question is while calculating RMS value, should I decide to determine the period by looking a) or b) graph? Because, while I'm looking for the a. graph (shown above), I guessed the period is 2pi However, if I would...