運算式 1: "y" equals StartFraction, left parenthesis, "x" plus 1 , right parenthesis Over left parenthesis, 2 minus "x" , right parenthesis , EndFractiony=x+12−x
1
運算式 2: "y" equals StartFraction, left parenthesis, "x" , right parenthesis Over left parenthesis, 3 plus "x" , right parenthesis , EndFractiony=x3+x