The solution to the differential equation d2u/dx2 - k du/dx = 0 where k is a co

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The solution to the differential equation d2u/dx2 - k du/dx = 0 where k is a constant, subjected to the boundary conditions u(0) = 0 and u(L) = U, is

Options:

A . u = U x/L

B . u = U[(1 - ekx)/(1 - ekL)]

C . u = U[(1 - e-kx)/(1 - e-kL)]

D . u = U[(1 + ekx)/(1 + ekL)]

Answer: Option B

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