Hello, I have a problem with solving this DE:

y'' - y = -4sin^3x + 9sinx where y(0)=y(2pi). I have solved it but i dont know how to do it in Maple. Thanks in advace.

Hello, 
Im beginner in Maple so i need a help with the following differential equation:
y'' - y = 0 where y(0) = 0 and y(1) = 1

I solved this but im confused how can i solve it in Maple.

Thank you in advance.