Recent content by chen0000

I really don't know what else to do to approach the question...

Homework Statement In the two-player game "Morra", the players simultaneously hold up some fingers and each guesses the total number of fingers help up. If exactly one player guesses correctly, then the other player pays her the amount of her guess(in dollars, say). If either both players...

x'' - 2x' = e^t X(t) = Ae^t (A-2A)e^t = e^t -A = 1 A = -1 X(t) = - e^t ?

well I'm not sure if we're supposed to do it like this but I remember something about x" = x' + y' = x' + x + y + e^t and then we have x'' - 2x' = 0 and y = x' - x, but that's for homogeneous, and i don't know where to go from there.

Homework Statement dx/ dt = x + y dy/ dt = x + y + et x(0) = 0 y(0) = 1.Homework Equations The Attempt at a Solutionx'' = x' + y' = x' + x + y + et x'' - 2x' = 0 y = x' - x