"If z is a complex   number of unit modulus and argument q, then `a r g((1+z)/(1+ bar z))` equal
Channel: Doubtnut
Date: 2020-07-12

"If z is a complex   number of unit modulus and argument q, then `a r g((1+z)/(1+ bar z))` equal (1) `pi/2-theta`    (2) `theta`  (3) `pi-theta`  (4) `-theta`"