if z1 and z2 are 2 complex nos such that z1+z2 is a real number then z2=​

1 thought on “if z1 and z2 are 2 complex nos such that z1+z2 is a real number then z2=​”

1. Step-by-step explanation:

   Correct option is

   A

   z2=z1

   for z1z2 to the real

   z2=z1 or−z1

   ⇒z1z2=z1z1=∣z1∣2

   or z1z2=−∣z1∣2

   also

   z1+z2=real

   which isn’t possible for z2=−z1

   for z1−z1=im (z1)

   So,z2=z1

   Reply