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tan "" (pi)/(5) + 2 tan "" (2pi)/(5) + 4...

`tan "" (pi)/(5) + 2 tan "" (2pi)/(5) + 4 cot "" (4pi)/(5)=`

A

`"cot"pi/5`

B

`"cot"(2pi)/5`

C

`"cot"(3pi)/5`

D

`"cot"(4pi)/5`

Text Solution

Verified by Experts

The correct Answer is:
A
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