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If z=((1+isqrt3)^2)/(4i(1-isqrt3)) is a ...

If `z=((1+isqrt3)^2)/(4i(1-isqrt3))` is a complex number then a. `arg(z)=pi/4` b. `arg(z)=pi/2` c. `|z|=1/2` d. `|z|=2`

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