Post a New Question

posted by Hannah on Monday, February 27, 2012 at 12:07pm.

So I'm supposed to verify the solution of the differential equation. The solution is y=e^(-x). The differential equation is 3y' + 4y = e^(-x). What is the problem asking me to do here?

plug in y to see whether it satisfies the differential equation y = e^(-x) y' = -e^(-x) 3y' + 4y = -3e^(-x) + 4e^(-x) = e^-x so, it does satisfy it.

Oh, okay. I get it now. Thanks!

More Related Questions