If \( x, y, z \) are real and \( 4 x^{2}+9 y^{2}+16 z^{2}-6 x y-12 y z-8 z x=0 \) then \( x, y, ... VIDEO
If \( x, y, z \) are real and \( 4 x^{2}+9 y^{2}+16 z^{2}-6 x y-12 y z-8 z x=0 \) then \( x, y, z \) are
(a) A.P.
(b) G.P.
(c) H.P.
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