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If alpha = (2pi )/(7) , then tan alpha t...

If `alpha = (2pi )/(7) ,` then `tan alpha tan 2 alpha + tan 2 alpha tan 4 alpha + tan 4 alpha tan alpha =`

A

`-1`

B

`-3`

C

`-5`

D

`-7`

Text Solution

Verified by Experts

The correct Answer is:
D
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