- #1
abrowaqas
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Homework Statement
Solve the following differential equation
y'''-3y''+2y' = e^x/(1+e^(-x))
Homework Equations
The Attempt at a Solution
first i find the complementary function i-e
Yc= C1 e^x + C2 e^(1+√3)x + C3 (1-√3)x
now i started to find particular integral by
Yp = 1/f(D) e^x/(1+e^(-x))
= e^x 1/f(D+1) 1 /(1+e^(-x))
= e^x 1/f(D+1) e^x/e^x+1
i am stuch here... how i may go now..
can anybody tell me how i find Particular Integral of this question?