value of `x^3- y^3 ` if `x/y + y/x = -1 , ( x,y != 0 ) `

Find the greatest value of x^3y^4 if 2x + 3y = 7 and x>=0,y>=0 .

Find the greatest value of x^3y^4 if 2x + 3y = 7 and x>=0,y>=0 .

Find the greatest value of x^3y^4 if 2x + 3y = 7 and x>=0,y>=0 .

Find the greatest value of x^3y^4 if 2x + 3y = 7 and x>=0,y>=0 .

Find the greatest value of x^(3)y^(4) if 2x+3y=7 and x>=0,y>=0 .

Find the value of x, y, z if ((x-3, 3x-z), (x+y+7, x+y+z))=((1, 0), (1, 6))

Find the value of (( x -y )^3 + ( y - z )^3 + ( z - x )^3 )/ (9 ( x - y )( y - z ) ( z - x )) 1 . 0 2 . 1/9 3 . 1/3 4. 1

if x/y + y/x = -1 ( x, y != 0 ) , then the value of x^3 -y^3 is

The value of lim_(x->1) y^3/(x^3-y^2-1) as (x, y)-> (1, 0) along the line y = x -1 is

The value of lim_(x->1) y^3/(x^3-y^2-1) as (x, y)-> (1, 0) along the line y = x -1 is