Expression 3: "g" left parenthesis, "n" , "x" , right parenthesis equals "x" minus sine left parenthesis, "g" left parenthesis, "n" minus 1 , "x" , right parenthesis , right parenthesisgn,x=x−singn−1,x
3
g(x) is the inverse of sin(x) + x
4
Expression 5: left parenthesis, sin left parenthesis, "g" left parenthesis, "n" , "x" , right parenthesis , right parenthesis minus "g" left parenthesis, "n" , "x" , right parenthesis , right parenthesissingn,x−gn,x