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Question: Here's my problem

Question:Here's my problem

dinobeek 25 Maple
July 23 2008
1

I get to the point  error (in dsolve), required an indication of the dependent variables in the given system. i do not know what this means..

What i did is type in y''+4y'+5y=0

than i entered the initial conditions y(pi/2)=1/2 and y'(pi/2)=-2

than i dsolved 1 and 2 and recieved that error, what am i doing wrong, i am brand new to maple and would almost rather do it by hand
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