Question

Simplify the following expression:
Sin(x+y)+sin(x-y)/ Cos(x+y)+cos(x-y)

Answer 1

I am so confused on how to do this one if you can thoroughly explain this it will be HIGHLY appreciated

Answer 2

\[\frac{ \sin(x+y)+\sin(x+y) }{ \cos(x+y)+\cos(x+y) }\]
\[\frac{ \sin(x)\cos(y)+\cos(x)\sin(y)+\sin(x)\cos(y)-\cos(x)\sin(y) }{ \cos(x)\cos(y)-\sin(x)\sin(y)+\cos(x)\cos(y)+\sin(x)\sin(y) }\]
\[\frac{ 2\sin(x) \cos(y)}{2\cos(x)\cos(y) }\]
\[\tan(x)\]

Answer 3

how did u get this answer??!:!?!?!?

Answer 4

I got it thanks!!!!