Question

prove that

sin ( X +y ) / sin ( X - y ) = tanx +tany /tanx - tany​

Answer 1

Step-by-step explanation:

sin(x+y)/sin(x-y)

=sinxcosy+cosxsiny/sinxcosy-cosxsiny

devide cosxcosy in both numerator & denominator

=tanx+tany/tanx-tany