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condense 2[lnx-ln(x+1)-ln(x-1)]

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1 Answer

2 [ ln X - ln ( X +1) - ln ( X -1) ] =
 
2 [ ln (  X / X+1) * 1 /   (X -1) ] =
 
ln ( X^2/((X ^2 -1)^2 ) =
 
ln (     x ^2     
      (X^2 -1) ^2