Expression 2: "v" Subscript, 2 , Baseline left parenthesis, "x" , "y" , right parenthesis equals StartFraction, 1 Over StartRoot, 1 plus StartNestedFraction, 1 minus "x" squared NestedOver left parenthesis, "x" plus StartNestedFraction, "y" NestedOver StartRoot, 1 minus "y" squared , EndRoot , EndNestedFraction , right parenthesis squared , EndNestedFraction , EndRoot , EndFraction left brace, 0 less than "x" less than 1 , right brace left brace, 0 less than "y" less than 1 , right bracev2x,y=11+1−x2x+y1−y220<x<10<y<1
2
Expression 3: StartFraction, "v" Subscript, 2 , Baseline left parenthesis, "x" , "y" , right parenthesis Over "v" Subscript, 1 , Baseline left parenthesis, "x" , "y" , right parenthesis , EndFractionv2x,yv1x,y
3
Expression 4: "v" Subscript, 2 , Baseline left parenthesis, "x" , "y" , right parenthesis minus "v" Subscript, 1 , Baseline left parenthesis, "x" , "y" , right parenthesisv2x,y−v1x,y
