`tan 20^(@) + tan40^(@) + sqrt(3).tan 20^(@).tan 40^(@)=`

Find tan 20^(@) + tan40^(@) + sqrt(3)tan20^(@)tan40^(@) .

A =(cos 9^(@) - sin 9^(@))/(cos 9^(@) + sin 9^(@)) , B = (cos 21^(@) + sin 21^(@))/(cos21^(@) -sin21^(@)) and C= tan 20^(@) + tan40^(@) + sqrt(3)tan20^(@) tan40^(@) then descending order is:

The value of tan 40^(@) + tan 20^(@) + sqrt(3) tan 20^(@) tan 40^(@) is equal to

The value of tan 40^(@) + tan 20^(@) + sqrt(3) tan 20^(@) tan 40^(@) is

tan20^(@)+tan40^(@)+sqrt(3)tan20^(@).tan40^(@)=?

The value of tan20^(@)+tan40^(@)+sqrt(3)tan20^(@)tan40^(@) is