# Problem in ode with frobenius

1. Oct 29, 2005

### edgar

i need your help...i had to solve some ode using the frobenius method but half-way through i stuck...
for the first ode
i didn't know what to do when i had to multiply the sinx and cosx with y,y',y"
ii)i had a problem because of the cosx and i couldnt equate the series...--->second ode
iii)a) the third is to be solved using frobenius, but a1 has a problem...,
b) by using y(x)=w(x)/x, i had to find the new solution
oh and x0=0
the ode formulas are attached...forgive me i am not a native english speaker and it is the first time i write in this kind of forum...also please help me as much as you can...i have a deadline until tommorow...thanks again...

#### Attached Files:

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File size:
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• ###### ode3.bmp
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87
Last edited: Oct 29, 2005
2. Oct 29, 2005

### HallsofIvy

Since you are writing y as a Taylor's series, do the same with sine and cosine.