Question

please solve the below question with step by step explanation ​

Answer 1

Step-by-step explanation:

Substitucting z=x+iy

⇒∣x+iy−ai∣=∣x+iy+ai∣

⇒x

2

+(y−a)

2

=x

2

+(y+a)

2

⇒2ay=0

⇒y=0