P: left parenthesis, "e" , "f" left parenthesis, "e" , right parenthesis , right parenthesise,fe
標籤:
2
運算式 3: "t" left parenthesis, "x" , right parenthesis equals "e" "x" minus "e" squaredtx=ex−e2
3
運算式 4: "t" left parenthesis, "x" , right parenthesis less than "y" less than "f" left parenthesis, "x" , right parenthesis left brace, "x" less than "e" , right bracetx<y<fxx<e