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If(1+i)^(2n)+(1-i)^(2n)=-2^(n+1)(where,i...

If`(1+i)^(2n)+(1-i)^(2n)=-2^(n+1)(where,i=sqrt(-1)` for all those n, which are

A

even

B

odd

C

multiple of 3

D

None of these

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