MATHEMATICS · Single correct · A Level · Mathematics · Vectors · Vectors
Problem
Paragraph for Question 7 & 8.
On the argand plane consider A(z1) , B(z2) and C(z3) as distinct complex numbers lying on the curve ∣z∣=3 .
If root of z1z2+z2z+z3=0 has modulus unity then z1,z2,z3 are in
(A) A.P.
(B) G.P.
(C) H.P.
(D) All of above.