Expression 3: "c" left parenthesis, ln left parenthesis, "y" squared plus left parenthesis, "x" minus 1 , right parenthesis squared , right parenthesis minus ln left parenthesis, "y" squared plus left parenthesis, "x" plus 1 , right parenthesis squared , right parenthesis , right parenthesis plus 2 "b" left parenthesis, tan to the negative 1st power left parenthesis, StartFraction, "x" minus 1 Over "y" , EndFraction , right parenthesis minus tan to the negative 1st power left parenthesis, StartFraction, left parenthesis, "x" plus 1 , right parenthesis Over "y" , EndFraction , right parenthesis , right parenthesis equals "a"clny2+x−12−lny2+x+12+2btan−1x−1y−tan−1x+1y=a
3
Expression 4: "a" equals StartFraction, left bracket, negative 12...1 2 , right bracket pi Over 3 , EndFractiona=−12...12π3