If `xy(x-y)=2k^(3)` (`k >0`) then `y` has minimum when `x=`

If xy(y-x)=16 then y has a minimum value when x=

If x+y=k and x>0,y>0 then x^(2)+y^(2) is minimum if

If xy=k , where x, y epsilon N , then x+y is minimum when (x, y)-= …

If x+y =k , where x, y epsilon N then xy is maximum when (x, y)-=..

If f(x)={([3+|x-k| ,x k]) has minimum at x=k,then (a )|a| 2 (d) |a|>=2

If x,y in R and x^(2)+y^(2)+xy=1, then find the minimum value of x^(3)y+xy^(3)+4

If xy(x+y)=k," then: "x(x+2y)(dy)/(dx)=

The minimum value of 2x+3y, when xy=6 is

If the area of the triangle formed by the lines 3x^(2)-2xy-8y^(2)=0 and the line 2x+y-k=0 is 5 sq.units then k=

If the equation x^(2)+3xy+2y^(2)+x-y+k=0 represents a pair of line, then k=