1.

If x,y, z and w are non-zero real numbers andx^(2) + 5y^(2) + 5z^2+4w^(2) - 4xy - 4yz - 4zw = 0, then x, y, z,w are in

Answer»

A.P.
A.G.P
H.P.
G.P.

Answer :4


Discussion

No Comment Found

Related InterviewSolutions