If `x,y` and `z` are positive real numbers such that `x=(12-yz)/(y+z)` the maximum value of `xyz=`

If x ,y and z are positive real umbers and x=(12-yz)/(y+z) . The maximum value of x y z equals.

If x,y,and z are positive real numbers and x=(12-yz)/(y+z) . The maximum value of (xyz) equals___________.

If x,y, and z are posirive real umbers and x=(12-yz)/(y+z). The maximum value of xyz equals.

If x ,y and z are posirive real umbers and x=(12-y z)/(y+z) . The maximum value of x y z equals.

If x ,y ,a n dz are positive real umbers and x=(12-y z)/(y+z) . The maximum value of x y z equals.

If x, y, z are positive real numbers such that x+y+z=a, then

If x, y, z are positive real numbers such that x+y+z=a, then

If x,y,z are positive real numbers such that y,z,x are in G.P. and x+y+z=xyz then the maximum value of equals (76)/(x^(4)+x^(2)+7) equals

Let x,y,z are positive real numbers satisfying x+y+z=1 . If the maximum value of x^(3)y^(2)z can be expressed as (a)/(b) where a and b are co-prime,then the value of (a+b) is