Simplify: fracsintheta1+costheta\\frac{\\sin\\theta}{1 + \\cos\\theta}fracsintheta1+costheta
tan(theta/2)\\tan(\\theta/2)tan(theta/2)
cos(theta/2)\\cos(\\theta/2)cos(theta/2)
sin(theta/2)\\sin(\\theta/2)sin(theta/2)
cot(theta/2)\\cot(\\theta/2)cot(theta/2)