" Q13.If three complex numbers are in A.P.,then they lie on "

If three complex number are in A.P then they lie on

If z_(1) , z_(2), z_(3) are three complex numbers in A.P., then they lie on :

If z_(1) , z_(2), z_(3) are three complex numbers in A.P., then they lie on :

If three complex numbers are in AP.Then,they lie on a circle in the complex plane.

If z_(1), z_(2), z_(3) are three complex numbers in A.P., then they lie on

If the complex numbers z_(1),z_(2),z_(3) are in AP, then they lie on

If the complex numbers z_(1),z_(2),z_(3) are in AP, then they lie on

If p,q,r , three positive real numbers are in A.P., then the roots of px^(2) + qx + r = 0 are all real for :

If the square of differences of three numbers be in A.P., then their differences re in (A) A.P. (B) G.P. (C) H.P. (D) none of these