bayanhorani
i have equation about diff. ode



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bayanhorani
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dw:1350287734547:dwhow to solve this equation step by step

bayanhorani
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by two methods

lgbasallote
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are you familiar with laplace transformation? or no?

bayanhorani
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no

bayanhorani
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by nonhomogunes
but how??????????/

lgbasallote
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well you have to solve the left side first

bayanhorani
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ok

lgbasallote
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assume homogeneous for the left sde
y'' + 4y'+4y = 0
do you know how to solve that?

bayanhorani
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yes

bayanhorani
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but the right gow????????????/

lgbasallote
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so what do you get?

lgbasallote
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solve the left side first

bayanhorani
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dw:1350288124728:dwthe left get

bayanhorani
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how to solve right side

lgbasallote
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you're familiar with variation of parameter right?

bayanhorani
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how????????????????/

lgbasallote
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what do you mean how?

bayanhorani
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i can't solve it

bayanhorani
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help me

lgbasallote
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do you know variation of parameters or not??

bayanhorani
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no

lgbasallote
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do you know undetermined coefficients?

bayanhorani
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no

lgbasallote
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then what do you know?

bayanhorani
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nothing
can yiu help me and solve it step by step

lgbasallote
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you mean to tell me....you're teacher never taught you...and still expects you to answer this??

lgbasallote
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this is an intermediate problem in homogeneous differential equations... i don't believe your teacher never taught you the basics to this.....

UnkleRhaukus
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step 2 solve the particular solution

UnkleRhaukus
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should we use determination of coefficients method/?