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Diff eq

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Thread replies: 6
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Anonymous
Diff eq 2017-01-30 03:04:20 Post No. 8640022
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Diff eq Anonymous 2017-01-30 03:04:20 Post No. 8640022 [Report]
Having a lot of trouble with this extra credit problem, any pointers?
I tried solving it by solving the characteristic equation, but that didn't lead anywhere. Is it just about finding a clever value of alpha?
>>
Anonymous 2017-01-30 03:09:13 Post No.8640024
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Anonymous 2017-01-30 03:09:13 Post No.8640024 [Report]
Oh that should say "...in the variable z with no z' term for the right choice of alpha"
>>
Anonymous 2017-01-30 03:11:34 Post No.8640025
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Anonymous 2017-01-30 03:11:34 Post No.8640025 [Report]
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Version with typo removed
>>
Anonymous 2017-01-30 03:13:11 Post No.8640032
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Anonymous 2017-01-30 03:13:11 Post No.8640032 [Report]
literally just replace y'', y' and y with what they're equal to in terms of z, z', z''

you get alpha=-b/2 i think
>>
Anonymous 2017-01-30 03:14:24 Post No.8640036
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Anonymous 2017-01-30 03:14:24 Post No.8640036 [Report]
>>8640032
Oh god that makes sense. Thanks!
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Anonymous 2017-01-30 04:04:05 Post No.8640109
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Anonymous 2017-01-30 04:04:05 Post No.8640109 [Report]
>>8640032
Actually I've been trying to do this and it isn't really working. Could you elaborate?
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