Question

sina/1+cosa + 1+cosa/sina

Answer 1

sin/1+cos + 1+cos/sin

taking lcm

sin(sin)+ 1+cos(1+cos)/(1+cos)sin

sin^2+1+cos+cos+cos^2/(1+cos)sin

1+1+2cos/(1+cos)sin

2+2cos/(1+cos)sin

2(1+cos)/(1+cos)sin

2/sin

2cosec is the answer