Undergrad Simplify Tricky Equation for Purely Imaginary C with Complex Constants

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The discussion revolves around solving an equation for a purely imaginary value C, where F and G are complex constants. Participants suggest taking logarithms and simplifying the equation by introducing variables A and B. It is noted that with the provided hints, isolating C becomes straightforward. The original poster confirms they successfully solved the equation after receiving guidance. The conversation ends with a request for the origin of the equation.
thatboi
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Hey all,
I am currently trying to solve the following equation for C:
1659137331786.png

where C is a purely imaginary value, ##F_{+}##, ##F_{-}## and ##G_{+}## and ##G_{-}## are all complex valued constants (so ##G_{+}^{*}## just means complex conjugate of ##G_{+}##. I am not really sure where to start with isolating C, any advice would be greatly appreciated!
 
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Take logarithms of both sides and see if you can solve that equation for C.
 
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Let ##F_+ /F_- = A## and ##\sqrt{ \dfrac{G_-G_+^*}{G_-^*G_+} } = B##

Your equation is ##A^{-C/2} = (-1)^{1-C}B ##

Always do simplifications and change of variables, to see what is going on.
 
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@thatboi , with the two hints given to you above, it is fairly easy to solve for C. Is that working out for you?
 
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phyzguy said:
@thatboi , with the two hints given to you above, it is fairly easy to solve for C. Is that working out for you?
Thanks for the hints I have already worked it out!
 
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Great!

May I ask where this equation came from?
 
Here is a little puzzle from the book 100 Geometric Games by Pierre Berloquin. The side of a small square is one meter long and the side of a larger square one and a half meters long. One vertex of the large square is at the center of the small square. The side of the large square cuts two sides of the small square into one- third parts and two-thirds parts. What is the area where the squares overlap?

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