Mark the correct alternative in the following: tan 20 o + tan 40 o + √3 tan 20 o tan 40 o is equal to

Question

Philoid · Accepted Answer

tan 20^o + tan 40^o + √3 tan 20^o tan 40^o

tan 60^o (1- tan 20^o tan 40^o)+ √3 tan 20^o tan 40^o