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Questions  >>  EAMCET  >>  Mathematics
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Q)

$\bigg(\large\frac{1+i}{1-i}\bigg)^4+\bigg(\frac{1-i}{1+i}\bigg)^4=$

\[(a)\;0 \quad (b)\;1 \quad (c)\;2 \quad (d)\;4 \]

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