Question

A + B + C = 180 degrees(pi radians)
& sin(A+C/2)=ksin(C/2)
then,
tan(A/2)tan(B/2)=?

Answer 1

let A=B=C=60
then k=1

and the answer is 1/3

Answer 2

A is not equal to B and B is not equal to C.