Question

sin x + sin 2A divide by 1 + cos x + cos 2 x is equal to tan x​

Answer 1

sinx+sin2x/1+cosx+cos2x=sinx+2sinxcosx/cos²x+sin²x+cosx+cos²x-sin²x

=sinx(1+cosx)/cosx(1+2cosx)

=tanx