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The value of is sum(k=1)^(10)(sin"" (2k ...

The value of is `sum_(k=1)^(10)(sin"" (2k pi)/(11)+ icos ""(2k pi)/(11))` is

A

`i`

B

`1`

C

`-1`

D

`-i`

Text Solution

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The correct Answer is:
D
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