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

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

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

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

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

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

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

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

mahmit2012
 3 years ago
Best ResponseYou've already chosen the best response.1then 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

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

mahmit2012
 3 years ago
Best ResponseYou've already chosen the best response.1I found it with Laplace !

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

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

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

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

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