If `x – 2y = 4,` the minimum value of `xy` is

If x-2y = 4, then the minimum value of xy is

If x gt 0 and xy =1 , the minimum value of (x + y) is

Let x and y be two variables and x gt 0 , xy=1 , then the minimum value of x+y is-

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

Let x and y be two variables such that x gt 0 and xy =1. Then the minimum value of x+y is

If x,y,z are positive real numbers such that x^(2)+y^(2)+Z^(2)=7 and xy+yz+xz=4 then the minimum value of xy is

If x,y,z are positive real numbers such that x^(2)+y^(2)+Z^(2)=7 and xy+yz+xz=4 then the minimum value of xy is