tan 20^(@) + tan40^(@) + sqrt(3).tan 20^...

`tan 20^(@) + tan40^(@) + sqrt(3).tan 20^(@).tan 40^(@)=`................... A) ` (1)/(sqrt3)` B) `sqrt3` C) `-(1)/(sqrt3)` D) `-sqrt3`

A

` (1)/(sqrt3)`

B

`sqrt3`

C

`-(1)/(sqrt3)`

D

`-sqrt3`

Verified by Experts

The correct Answer is:

B

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