5tan40+tan80-sqrt(3)tan40tan80

b) If A+B=60^(@) then find tan20+tan40+sqrt(3)tan20tan40

tan40^(@)+tan80^(@)-sqrt(3)tan40^(@)tan80^(@)=

tan20^(@)-tan80^(@)+sqrt(3)tan20^(@)tan80^(@)=

Assertion (A): tan40^(@) + tan 80^(@) - sqrt(3)tan 40^(@) tan80^(@)=-sqrt(3) Reason ( R): tan( A + B) =tan A + tan B + tan(A + B) tan A tan B

Prove that tan20^(@) tan40^(@) tan80^(@) = sqrt3

Prove that tan20^(@)tan40^(@)tan80^(@)=tan60^(@) .

Prove that tan20^(@)tan40^(@)tan80^(@)=tan60^(@)

Prove that: tan20^(@)tan40^(@)tan80^(@)=tan60^(@)

tan20^@+tan40^@+sqrt3tan20^@tan40^@=

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