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Question: Dsolve does not work (solving a boundary value problem).

Question:Dsolve does not work (solving a boundary value problem).

ligonberry 10 Maple
July 24 2018
2

Hello!
I am really desperate right now and I need help or advice.

I don't understand why dsolve doesn't work for my example. He doesn't get anything out....

restart; 
de := sin(1)*(diff(y(x), x$2))+(1+cos(1)*x^2)*y(x) = -1: 
cond := y(-1) = 0, y(1) = 0: 
dsolve({cond, de}, y(x))

Really hope for your help.
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