Question

if sin( x+y) / sin( x-y)=a+b / a-b. show that tan x / tan y= a/b

Answer 1

apply componendo dividendo rule

Answer 2

Answer:

see the attachment for the solution

I have applied componendo - dividendo

according to this

if

a/b = c/d

then

$\frac{a + b}{a - b} = \frac{ c+d }{ c-d }$