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The value of tan ""pi/ 5+ 2 tan ""(2pi)/...

The value of `tan ""pi/ 5+ 2 tan ""(2pi)/(5) + 4 cot ""(4pi)/(5)` is

A

`cot(pi/5)`

B

`cot((2pi)/5)`

C

`cot((4pi)/5)`

D

`cot((3pi)/5)`

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