a/ Solved by de Alembert utt = c²uxx u(x, 0) = f(x) ut (x, 0) = g(x) f and y are given by where CI C = 1 f(x) = 3 e-x² ,д (x)=0 2 C=3 و f(x)=0 9 9CX = Xe-X

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