y = c1 + c2cos x + c3sin x is the general solution of the differential equation y''' + y' = 0 on (-infinity, infinity). Find a member of the family that is a solution with initial conditions y(pi) = 0, y'(pi) = 2, and y''(pi) = -1.
(1) What is the value of c1?
(1) What is the value of c2?
(1) What is the value of c3?
I can't figure this one out for nothing!
How would I solve the three equations to find each? I'm stuck here