What is the relationship between A and B in the given equation?

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SUMMARY

The discussion centers on the equation E = [axhat(A(x+y)) = ayhat(B(x-y))]cos(wt) and the relationship between functions A and B. The user has attempted to simplify the equation to E = cos(wt)[x(A+B)axhat + y(A-B)ayhat] but is uncertain about the next steps. Key insights include the suggestion that E may represent an electric field, which would impose additional conditions on its divergence. Furthermore, clarification is needed regarding the functions A(x+y) and B(x-y), as their treatment in the rearrangement appears to be incorrect.

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Homework Statement


E = [axhat(A(x+y)) = ayhat(B(x-y))]cos(wt)

Determine the relationship between A and B

Homework Equations


I don't know if there are any.

The Attempt at a Solution


I've expanded the problem and reduced it to E = cos(wt)[x(A+B)axhat + y(A-B)ayhat]
I was going to take the real component and convert to the frequency domain to try to manipulate the cosines but I don't know if that's the right step.

If someone could just get me started or point me in the right direction I think I could figure it out. Not looking for someone to do this for me.
 
Last edited:
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It would help to know what E represents. Is it supposed to be a solution to the wave equation or some other pde? If so, you can try to apply that equation and find conditions on A and B. If E is an electric field, there is an additional condition on its divergence that might be useful.

Also, it seems likely that A(x+y) and B(x-y) are meant to be functions of those arguments, so the rearrangement that you made is probably incorrect.
 

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