運算式 1: negative arc tangent left parenthesis, "x" , right parenthesis−arctanx
1
運算式 2: "f" left parenthesis, "x" , right parenthesis equals negative left parenthesis, 3 "x" Superscript, StartFraction, 1 Over 17 , EndFraction , Baseline , right parenthesisfx=−3x117