WBJEE 2014 Maths Solved Paper

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Question : 16 of 80

Marks: +1, -0

The value of tan

π

5

+ 2 tan

2π

5

+ 4 cot

4π

5

is

cot
π
5
cot
2π
5
cot
4π
5
cot
3π
5

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