Question 622075
please helpme solve: 
add & simplify: 
(1/csc(beta)+1)-(1/csc(beta) -1)
use x for beta
1/cscx=sinx
(1/cscx+1)-(1/cscx -1)
=(sinx+1)-(sinx-1)
=six+1-sinx+1
=2