Originally Posted by Honus

Is that the exact wording of the problem? It's been a long time (30 years) since I took a math class, but I don't recall seeing a problem worded in that fashion. The "what happens when ..." seems vague to me. I am particularly confused by this part:Really odd punctuation.

Is there anything in the materials they gave you that further defines the term "wave"? If a wave is always stated as "h(x) = a sin(x)", or something like that, then Kuan's approach looks like a good start.