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z(1) and z(2) are unimodular complex num...

`z_(1) and z_(2)` are unimodular complex numbers that satisfy `z_(1)^(2) + z_(2)^(2)=4` then the value of `((z_(1)+bar(z)_(1))^(2)+ (z_(2) +bar(z)_(2))^(2))/(2)` is

A

10

B

11

C

12

D

13

Text Solution

Verified by Experts

The correct Answer is:
C
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