Up: 12.10
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Homogeneous equation:
Variation of parameters:
Put the additional terms to zero:
|  |
(1) |
Do not put the additional terms to zero in the highest derivative.
Instead, put everything into the O.D.E.:
|  |
(2) |
The result is a system of linear equations (1), (2) for A' and B':
Forward elimination:
Back substitution gives B'=1 and 
:
Total solution 
:
Up: 12.10
Previous: 12.10, §1 Asked