Chemical Engineering > GATE 2019 > Ordinary Differential Equations
The solution of the ordinary differential equation dy/dx + 3y = 1, subject to the initial condition y=1 at x=0, is
A
(1/3)(1 + 2e-x/3)
B
(1/3)(5 - 2e-x/3)
C
(5/3) - (2/3)e-x/3
D
(1/3)(1 + 2e-3x)

Correct : d

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