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The value of sum sum(n=1)^13(i^n+i^(n+1)...

The value of sum `sum_(n=1)^13(i^n+i^(n+1))`, where `i=sqrt(-1)`, equals to

A

i

B

i-1

C

`-i`

D

0

Text Solution

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The correct Answer is:
B
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