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Question: Problem with dsolve

Question:Problem with dsolve

Equa-diff 0 Maple
differential-equations
June 06 2012
0

Hello, 

 

I have to solve a system of two equations but I have the error message "Warning, cannot evaluate the solution past the initial point, problem may be complex, initially singular or improperly set up"

Here is what I did :



Then I get the error message 
The equations are the ones of a rocket with aerodynamical forces.

Can you help me please ?
Thank you
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