Some math

[The Godfather]

How would i expand

tan(13p/12)

using the whole tan(x+y) = (tanx+tany)/(1-tanxtany)

i don't understand how i would break 13p/12 down to two sum parts

 

[The Godfather]

damn no help?

 

[Aluvus]

n + n/12 ?

Would help if you provided any explanation of what the end goal is here.

 

[The Godfather]

thank youu