Question 716275
how do i prove that  cotx / cscx - 1   =   cscx + 1 / cotx 
-----------
Is it cotx / (cscx - 1)   =   (cscx + 1) / cotx  ?
--------------
Cross multiply
cot^2 = csc^2 - 1
Multiply thru by sin^2
cos^2 = 1 - sin^2
I'm convinced.