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Suppose $\arg$ $(z) = - 5 π / 13$ then, $\arg (\frac{z + z}{1 + z z})$ is

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−5π/13

5π/13

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detailed solution

Correct option is C

As z+z1+zzis a positive real number arg⁡z+z1+zz=0

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Suppose arg (z)=−5π/13 then, arg⁡z+z1+zz is

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Suppose $\arg$ $(z) = - 5 π / 13$ then, $\arg (\frac{z + z}{1 + z z})$ is