If `x. y, z` are positive real numbers such that `x^2+y^2+z^2=27,` then `x^3+y^3+z^3` has

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 x^(3)y^(2)z^(4)=7 , then the least value of 2x+5y+3z , is

If x, y, z are positive real numbers such that x^(3)y^(2)z^(4)=7 , then the least value of 2x+5y+3z , is

Let x, y, z be positive real numbers such that x + y + z = 12 and x^3y^4z^5 = (0.1)(600)^3 . Then x^3+y^3+z^3 is

x,y,z be positive numbers,show that (x+y+z)^(3)>=27xyz

Let x,y,z be positive real numbers such that x+y+z=12 and x^(3)y^(4)z^(5)=(0.1)(600)^(3) Then x^(3)+y^(3)+z^(3) is

If x,y and z are three real numbers such that x+y+z=4 and x^2+y^2+z^2=6 ,then show that each of x,y and z lie in the closed interval [2/3,2]