a) Solve: $r - 2s + t = \sin(x-y)$. b) Find P.I. of $(D^2 - D'^2 - 2D…

Question

a) Solve: $r - 2s + t = \sin(x-y)$.

b) Find P.I. of $(D^2 - D'^2 - 2D + 2D')z = xy$.

c) Using the method of separation of variables derive the solution for one dimensional Heat flow equation.

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