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z(1) and z(2) be two complex numbers wit...

`z_(1) and z_(2)` be two complex numbers with `alpha and beta` as their principal arguments, such that `alpha + beta gt pi`, then principal Arg `(z_(1) z_(2))` is

A

A) `alpha +beta +pi`

B

B) `alpha + beta -pi`

C

C) `alpha + beta -2pi`

D

D) `alpha + beta`

Text Solution

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The correct Answer is:
C
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