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anonymous
 5 years ago
Hi folks, I solved a 2nd order DE to obtain the general solution:
y = A cos2x + B sin2x  (1/5) sin3x
When I apply the two boundary conditions:
y(pi) = y(pi) and y'(pi) = y'(pi) I get:
A = A and B = B, what does this mean and have I applied the boundary conditions correctly??
anonymous
 5 years ago
Hi folks, I solved a 2nd order DE to obtain the general solution: y = A cos2x + B sin2x  (1/5) sin3x When I apply the two boundary conditions: y(pi) = y(pi) and y'(pi) = y'(pi) I get: A = A and B = B, what does this mean and have I applied the boundary conditions correctly??

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myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1yes for the first one I get A=A. when you get the same thing on both sides I believe that means A can be any constant let me look at the second one...

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1same thing for the second one i get B=B same case here B can be any constant

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Cheers, so having assertained that A and B are constants, how would I write that as an answer? Would I just write the general solution and say that A and B are constants???

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1yes thats what i would do

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.1but any solution of that form is a solution

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Excellent, thankyou :)
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