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I have this differential equation

[y''(x)]^3 + x*y''(x) = 2*y'(x)

y''(x) - is the second derivative and y'(x) is the first derivative and the goal is to find y(x). * means multiplying.

Please help me with this one.

2006-12-16 23:50:19 · 1 answers · asked by Anonymous in Science & Mathematics Mathematics

1 answers

Did you erase my answer? Well it is gone now. I did remember one trick but I can't seem tomake it work, that cubed term gets int he way. One method was to turn a d.e. into a linera system then use the exponetial of the matrix. E.g., if y"+y=0 then you set a=y,b=y' then you get a'=b and b'=-a so [a,b]'=[[0,1],[-1,0]]*[a,b] so then [a,b]=exp(matrix*t)....but that y"^3 is gonna mess things up big-time.

2006-12-20 05:20:27 · answer #1 · answered by a_math_guy 5 · 0 0

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