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#1 2011-04-12 12:21:00
- Cosmopolite
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- Registered: 2011-01-04
- Posts: 6
Undetermined coefficient.
I had this equation on my test, yesterday and I just couldn't do it. Hopefully someone in here will do better than me.
Y'''+Y' = X^2.
I was only able to solve the homogenous equation Y'''+Y' = 0.
My answer was y = C1+C2*cos x+ C3 *sinx.
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#2 2011-04-12 16:39:45
- gAr
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- Registered: 2011-01-09
- Posts: 3,482
Re: Undetermined coefficient.
Hi Cosmopolite,
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
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#3 2011-04-18 01:45:07
- Cosmopolite
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- Registered: 2011-01-04
- Posts: 6
Re: Undetermined coefficient.
Thank you.
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#4 2011-04-18 01:46:44
- gAr
- Member
- Registered: 2011-01-09
- Posts: 3,482
Re: Undetermined coefficient.
You're welcome.
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
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