If (\frac{1+i}{1-i}) ^x=1 then [AIEEE 2003]

Correct Answer is : x=4n, where n is any positive integer

x=2 n+1, where n is any positive integer

x=4 n, where n is any positive integer

x=2 n, where n is any positive integer

x=4 n+1, where n is any positive integer.

AIEEE 2003 Math Solved Paper

Section: Mathematics

Question : 3 of 66

Marks: +1, -0

If (‌

1+i

1−i

)x=1 then

[AIEEE 2003]

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