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Let f(x) and xf(x) be the particular solutions of a differential equation y'' + R(x)y' + S(x)y = 0. Then the solution of the differential equation y'' + R(x)y' + S(x)y = f(x) is
Options:
A .  y = [-x2/2 + αx + β] f(x)
B .  y = [x2/2 + αx + β] f(x)
C .  y = [-x2 + αx + β] f(x)
D .  y = [x3 + αx + β] f(x)
Answer: Option B


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