Undergrad Simplify Tricky Equation for Purely Imaginary C with Complex Constants

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SUMMARY

The discussion focuses on solving the equation ##A^{-C/2} = (-1)^{1-C}B## for a purely imaginary value C, where ##F_{+}##, ##F_{-}##, ##G_{+}##, and ##G_{-}## are complex constants. Participants suggest taking logarithms of both sides and simplifying using substitutions such as ##A = F_{+}/F_{-}## and ##B = \sqrt{ \dfrac{G_-G_+^*}{G_-^*G_+} }##. The hints provided lead to a straightforward solution for C, demonstrating the effectiveness of simplifications and variable changes in complex equations.

PREREQUISITES
  • Understanding of complex numbers and their properties
  • Familiarity with logarithmic functions in complex analysis
  • Knowledge of complex conjugates and their significance
  • Experience with algebraic manipulation of equations
NEXT STEPS
  • Study complex logarithms and their applications in solving equations
  • Explore variable substitution techniques in complex analysis
  • Learn about the properties of complex conjugates and their role in simplifications
  • Investigate advanced topics in complex analysis, such as analytic functions
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Mathematicians, physicists, and students engaged in complex analysis or working with equations involving complex constants will benefit from this discussion.

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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Likes Delta2 and malawi_glenn
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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Likes Vanadium 50, Delta2 and Mondayman
@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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Likes malawi_glenn
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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Likes malawi_glenn
Great!

May I ask where this equation came from?
 

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