Question: i need help in sloving pde equation and how to plot the graph

PDE:  utt=c2uxx+f(x,t)   ; f(x,t)=a*sin(2*pi*t/P)

BC: u(0,t)=0,u(L,t)=0;

IC: u(x,0)=0,ut(x,0)=0;

who can show me the steps by using maple? and i need help to plot the graph as well. thx!

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