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Let z1,z2,z3 be three points on absz=1 l...

Let `z_1,z_2,z_3` be three points on `absz=1` let `theta_1,theta_2` and `theta_3` be the argument of `z_1,z_2,z_3` then `cos(theta_1-theta_2)+cos(theta_2-theta_3)+cos(theta_3-theta_2)`

A

`ge(-3/2)`

B

`le(-3/2)`

C

`ge3/2`

D

none of these

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The correct Answer is:
A
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