# differential operator!

• September 13th 2012, 06:01 AM
lawochekel
differential operator!
an equation of this form: $f(D)y=\exp^{ax}cosax$

pls how do one approach it? thanks.
• September 13th 2012, 07:33 AM
topsquark
Re: differential operator!
Quote:

Originally Posted by lawochekel
an equation of this form: $f(D)y=\exp^{ax}cosax$

pls how do one approach it? thanks.

Approach what? You haven't actually asked a question!!

-Dan