Question: sensible or .................

Hi to all

I want know that can we slove the following equation

F(l)^2-(A1-A2*1/(l*coth(l*(S0-1))))*F(l)+A3/(l*coth(l*(S0-1)))-A4=0

where

F(l)= coth(l*(S0)))/coth(l*(S0-1)));

Is this possible from mathematical point of view?

 It make any sense to slove the above equation?

 

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