Question

The particular integral of the differential equation D( -7D+9)y-12 is​

Answer 1

Answer:

The particular integral (P.I.) of the given D.E. ; (D^2 - 9)y = 3 or {f(D)}y = 3 is given by ;

P. I. =3/f(D) = 3/(D^2 - 9)

= 3.{e^(0x)/(D^2 - 9)}

= 3.{1/(0 - 9)} = 3/(-9) = -1/3 .

Explanation:

good luck