Hidden Label: left parenthesis, 1 , "f" left parenthesis, 1 , right parenthesis , right parenthesis1,f1
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4
Expression 5: "h" left parenthesis, "x" , right parenthesis equals "g" left parenthesis, 1 , right parenthesis "x" positive left parenthesis, "f" left parenthesis, 1 , right parenthesis minus "g" left parenthesis, 1 , right parenthesis times 1 , right parenthesishx=g1x+f1−g1·1
5
Expression 6: "g" left parenthesis, "x" , right parenthesis equals StartFraction, "d" Over "d" "x" , EndFraction "f" left parenthesis, "x" , right parenthesisgx=ddxfx
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Expression 7: "k" left parenthesis, "x" , right parenthesis equals "f" left parenthesis, "a" , right parenthesis plus StartFraction, left parenthesis, "f" left parenthesis, "a" , right parenthesis minus "f" left parenthesis, 1 , right parenthesis , right parenthesis Over left parenthesis, "a" minus 1 , right parenthesis , EndFraction left parenthesis, "x" minus "a" , right parenthesiskx=fa+fa−f1a−1x−a