if `x + y = 2 ,` show that the maximum value of `z=4/x+36/y` is,

If x+y=2 , that the maximum value of z=(4)/(x)+(36)/(y) is less than its minimum value .

If x+y=3 then show that the maximum value of x^(2) y is 4.

If Z=2x + y subject to x le 4, y le 6, x+y ge 6, x ge 0, y ge 0 , then the maximum value of Z is

If Z=2x + y subject to x le 4, y le 6, x+y ge 6, x ge 0, y ge 0 , then the maximum value of Z is

If x + y + z =21 , then the maximum value of (x - 6) (y + 7)(z - 4) is :

If x , y, z in R, x + y + z= 4 and x^(2) + y^(2) + z^(2) = 6 , then the maximum possible value of z is

If x, y and z are three non-zero numbers such that x + y le z -x, y + z le x -y and z + x le y -z , the maximum value of x + y + z is __________.

If x+y +z= 21 then find the maximum value of (x-2) (y-1) (z+ 9)

Z=4x+2y,4x+2y ge 46, x +3y le 24 and x and y are greater than or equal to Zero, then the maximum value of Z is