Tan (a + b) = (5/12 -1/sqrt3) / 1 - (5/12)(-1/sqrt3)
We know Tan(a+b)=(tana+tanb)/(1-tana.tanb)
Comparing the given expression on the right hand side with this, we can see
(5/12 -1/sqrt3) / 1 ...
Solving a Tangent Function using Trigonometric Identities is investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.