sin(x)cos(x) + sin(x) = sin(x)[1 + cos(x)] and cos(x) + cos^2(x) = cos(x)[1 + cos(x)]. You have a common term in both which cancel, but now you are left with sin(x)/cos(x) which is?
Simplify each to one of three primary trig functions.
sin +sin/cos / 1+cos
sincos+sin/cos * 1/1+cos
i dont know really what to do from there answer is tan or where i went wrong.