Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If 
are two complex numbers such that 
and 
, where 
, then the angle between 
and 
is -
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let angle between z 1 – z 2 and z 1 + z 2 be α.
∴ 
= cosα + i sinα 
⇒ 
= 
⇒ 
= 
= 
= 
= 
= i cot 
.
∴ iz 1 = 
z 2 = 
z 2
But iz 1 = kz 2 . ∴ k = – cot 
∴ tan 
= – 
∴ tanα = 
= 
= 
= 
∴ a = tan –1 
.
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