Solve the wave equation subject to the boundary conditions of u(0,t) - 0 for t>=0, and u(L,t)=0, for t>=0.
u(x,0) = f(x) for 0<=x<=L
du/dt (x,0) = g(x)
f(x) = sin (2pix/L) , g(x) = 0
Note: Sorry but I don't even understand what the problem is asking, I have a really bad professor for this course (Applied Math), and to be honest, I had him before and I had to learn everything on my own. But then was Calculus I, and now this is difficult, I don't know even where to start, please help!