Multiple Choice Question (MCQ)
If z_1, z_2,z_3\in C, then z_1=z_2=z_3 is the for the equation (z_1z_2)^2+(z_2z_3)^2=0 to hold true.

✓
sufficient but not necessary condition

×
necessary but not sufficient condition

×
sufficient and necessary condition

×
neither sufficient nor necessary condition