+4623 +4623 Use the maximum/minimum principle to show that the solution u of the problem ut = uxx, 0 < x < π, t > 0, ux(0, t) = 0, ux(π, t) = 0, t > 0, u(x, 0) = sin(x) + 1 2 sin(2x), 0 ≤ x ≤ π how can i fined M m , which are max and min
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