Expression 2: "g" left parenthesis, "x" , right parenthesis equals 2 StartRoot, "x" , EndRoot sine left parenthesis, StartFraction, StartRoot, 4 "x" plus pi squared , EndRoot minus pi Over 2 , EndFraction , right parenthesis Has graph. To audio trace, press ALT+T.gx=2xsin4x+π2−π2