Expression 2: "f" left parenthesis, "x" , right parenthesis equals 2 left parenthesis, StartRoot, 64 minus left parenthesis, "x" plus 1 , right parenthesis squared , EndRoot minus StartRoot, 9 minus "x" squared , EndRoot , right parenthesis left brace, 0 less than or equal to "x" less than or equal to 3 , right bracefx=264−x+12−9−x20≤x≤3
2
最小 left parenthesis, 3 fifths , 4 StartRoot, 6 , EndRoot , right parenthesis35,46