1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

If $$\left(\frac{1+i}{1-i}\right)^x=1$$, then

A
$$x=4 n+1, n \in N$$
B
$$x=2 n+1, n \in N$$
C
$$x=2 n, n \in N$$
D
$$x=4 n, n \in N$$
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