Let u(x, t) be the solution of the Cauchy problem 9Uxx :0, u(x,0) = f(x) = Find u(0,1). Utt [1 |x|≤ 2, { 0 x > 2, -∞0 ut (x,0) = g(x) = 1 0 x ≤ 2. x > 2.

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