Question 1047792
Find the exact value of tan 15 
show answer in radians for example (1+sqrt(3))/2
-----------------
The tangent is not in radians.
The angle might be in radians, but I suspect you mean tan(15) degs.
--------------
{{{tan(x/2) = sin(x)/(1 + cos(x))}}}
{{{tan(15) = tan(30/2) = sin(30)/(1 + cos(30))}}}
{{{tan(15) = 2 - sqrt(3)}}}