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lilMissMindset
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i am stuck with this DE problem.
help please, anybody.
(D^2  D 2)y=6x+6e^(x)
 2 years ago
 2 years ago
lilMissMindset Group Title
i am stuck with this DE problem. help please, anybody. (D^2  D 2)y=6x+6e^(x)
 2 years ago
 2 years ago

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zepdrix Group TitleBest ResponseYou've already chosen the best response.0
dw:1350355096186:dw So what kind of complimentary solution did you get? Was there any overlap? :)
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
D=1 , 2 Yp=Ax+B+Cxex find A B C
 2 years ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.0
Woops I should have called the exponential term C, sorry about that.
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
but you mentioned Yp1 and its ok.
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
so Yp2=Cxex
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
Yp2 is the same as in the auxillary eqtn
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
no it has x so xex
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
yes, multiplied it with x, and then?
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
what will be the value of C?
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
then put in DE and find the values of A B C Y=c1ex + c2e2x + Ax+B+Cxex c1 & c2 are unknown , but A B C is exactly known
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
Tricky it is 2
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
how is that so? i keep on getting 3/2
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
I found it with Laplace !
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
teach me master. what is laplace?
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
no it is 6/(12)=2
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
Don't pay attention that just put in DE and find out A B C especially C. C=2
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
i get it. jeeeeeez, stupid mistake.
 2 years ago

lilMissMindset Group TitleBest ResponseYou've already chosen the best response.0
thanks a lot!
 2 years ago

mahmit2012 Group TitleBest ResponseYou've already chosen the best response.1
for A B 0A2(Ax+B)=6x A=3 B=3/2
 2 years ago
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